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Hydrophyllum appendiculatum Michx.
GREAT WATERLEAF
Life   Plantae   Dicotyledoneae   Hydrophyllaceae   Hydrophyllum

Hydrophyllum appendiculatum, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, whole plant - in flower - general view

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Hydrophyllum appendiculatum, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, leaf - basal or on lower stem
Hydrophyllum appendiculatum, inflorescence - lateral view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, inflorescence - lateral view of flower

Hydrophyllum appendiculatum, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, inflorescence - whole - unspecified
Hydrophyllum appendiculatum, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, stem - showing leaf bases

Hydrophyllum appendiculatum, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, whole plant - in flower - general view
Hydrophyllum appendiculatum, inflorescence - lateral view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, inflorescence - lateral view of flower

Hydrophyllum appendiculatum, inflorescence - frontal view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, inflorescence - frontal view of flower
Hydrophyllum appendiculatum, inflorescence - lateral view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, inflorescence - lateral view of flower

Hydrophyllum appendiculatum, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, leaf - basal or on lower stem
Hydrophyllum appendiculatum, leaf - on upper stem
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, leaf - on upper stem

Hydrophyllum appendiculatum, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, inflorescence - whole - unspecified
Hydrophyllum appendiculatum, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, stem - showing leaf bases

Hydrophyllum appendiculatum, leaf - margin of upper + lower surface
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, leaf - margin of upper + lower surface
Hydrophyllum appendiculatum, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Hydrophyllum appendiculatum, leaf - basal or on lower stem

Associates · map
FamilyScientific name @ source (records)
Apidae  Bombus bimaculatus @ UCRC_ENT (1)
Botryosphaeriaceae  Phyllosticta hydrophylli @ BPI (1)
Erysiphaceae  Erysiphe cichoracearum @ BPI (4); 560756A (1); 560756B (1)
Pucciniaceae  Puccinia rubigo-vera @ BPI (1)

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Following modified from MissouriPlants.com
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Hydrophyllum appendiculatum  Michx.

Woollen Breeches

Hydrophyllum appendiculatum plant

Family - Hydrophyllaceae

Stems - To +50cm tall, branching, single from the base, herbaceous, scabrous, hispid, angled from decurrent leaf tissue.

Hydrophyllum appendiculatum stem Stem.

Leaves - Alternate, petiolate. Petioles to +17cm long, scabrous, hispidulous. Blades of lower leaves deeply 5-lobed, with a few much smaller lobes on the petiole, green above, silvery-green below, hispidulous, to +12cm long and broad. Lobes acute, shallowly dentate. Teeth mucronate.

Hydrophyllum appendiculatum leaves

Hydrophyllum appendiculatum basals Spring leaves in-situ.

Inflorescence - Terminal scorpoid panicle to 10cm long. Peduncle hispid. Pedicels to 6-7mm long, hispid.

Hydrophyllum appendiculatum inflorescence Inflorescence.

Flowers - Corolla lilac (or rarely white), 5-lobed. Corolla tube to 4mm long, glabrous. Lobes rounded, 5-6mm long and broad, glabrous externally and internally except for vertical rows of hairs at base of lobe sinuses, fimbrillate on margins. Stamens 5, adnate at base of corolla tube, erect, mostly included. Filaments white-lilac, 8-9mm long, glabrous. Anthers lilac, to 3mm long. Ovary superior, unilocular, with yellow nectariferous ring at the base, conic, 1mm long, with erect white hispid pubescence. Style 7-8mm long, glabrous, white to lilac. Stigma 2-lobed, 1mm long. Calyx 5-lobed and with 5 small projections alternating with the lobes. Projections to 1mm long, spreading. Lobes attenuate, 6mm long, hispid, erect.

Hydrophyllum appendiculatum calyx Calyces.

Hydrophyllum appendiculatum flower Flowers.

Hydrophyllum appendiculatum appendages Calyx appendages.

Flowering - April - July.

Habitat - Moist rich woods, slopes, base of bluffs, thickets, wooded valleys.

Origin - Native to U.S.

Other info. - This species can be found throughout Missouri but is apparently absent from the plains region at the southwestern edge of the state. The plant can be locally abundant in the habitats mentioned above. It is distinguished from the two other Missouri members of the genus by having usually lavender-colored flowers borne above the leaves, and most leaves being lobed but not divided to the midvein. Vegetatively the distinction from H. canadense can be difficult. Several subtle leaf characters have been proposed to enable this differentiation but I have not found these to be consistently reliable across populations.
Steyermark mentions two forms based on flower color. Form appendiculatum has a lilac or purplish flower. Form album Steyermark has a white flower and is rare. The specific epithet appendiculatum refers to the tiny triangular appendages which alternate with the main calyx lobes (see photo above).
This is a beautiful species which would do well in a shaded garden setting. It is a biennial and is worthy of cultivation.

Photographs taken at Weston Bend State Park, MO., 5-12-01 (DETenaglia); also at Shaw Nature Reserve, Franklin County, MO, 4-27-2010, at Weldon Spring Conservation Area, St. Charles County, MO, 5-4-2011, at Faust County Park, St. Louis County, MO, 4-4-2012 and 5-2-2016, and at Washington State Park, Washington County, MO, 4-24-2017 (SRTurner).


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https://plants.usda.gov/java/profile?symbol=HYAP ---> http://plants.usda.gov/core/profile?symbol=HYAP
http://plants.usda.gov/core/profile?symbol=HYAP ---> https://plants.usda.gov/core/profile?symbol=HYAP
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You are here: Home / Plant Profile

Hydrophyllum appendiculatum Michx.
great waterleaf

Image of Hydrophyllum appendiculatum

General Information
Symbol: HYAP
Group: Dicot
Family: Hydrophyllaceae
Duration: Biennial
Growth Habit : Forb/herb
Native Status : CAN   N
L48   N
Data Source and Documentation
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Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images

click on a thumbnail to view an image, or see all the Hydrophyllum thumbnails at the Plants Gallery

Jennifer Anderson. United States, IA, Jackson Co., Eden Valley Refuge. 2002. Usage Requirements .

Jennifer Anderson. United States, IA, Jackson Co., Eden Valley Refuge. 2002. Usage Requirements .

©Thomas G. Barnes. Usage Requirements .

©Thomas G. Barnes. Barnes, T.G., and S.W. Francis. 2004. Wildflowers and ferns of Kentucky . University Press of Kentucky. Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 3: 66. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .

slideshow

Synonyms

Symbol Scientific Name
DEAP2 Decemium appendiculatum (Michx.) Small

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Asteridae
Order Solanales
Family Hydrophyllaceae – Waterleaf family
Genus Hydrophyllum L. – waterleaf
Species Hydrophyllum appendiculatum Michx. – great waterleaf

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

Related Links

More Accounts and Images
Integrated Taxonomic Information System (DEAP2)
Integrated Taxonomic Information System (HYAP)
Lady Bird Johnson Wildflower Center Native Plant Information Network (HYAP)
Native Plants Network (HYAP)
University of Tennessee Herbarium (Distribution) (HYAP)
University of Wisconsin - Stevens Point Freckmann Herbarium (HYAP)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover


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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Hydrophyllum+appendiculatum&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Hydrophyllum+appendiculatum&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 3
Query: SELECT * FROM img WHERE ready=1 and taxon like "Hydrophyllum appendiculatum%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Hydrophyllum appendiculatum
Hydrophyllum appendiculatum
Appendaged Waterleaf
ID: 0000 0000 0510 2640 [detail]
© 2010 Jeff Abbas

Hydrophyllum appendiculatum
Hydrophyllum appendiculatum
Appendaged Waterleaf
ID: 0000 0000 0510 2641 [detail]
© 2010 Jeff Abbas

Hydrophyllum appendiculatum
Hydrophyllum appendiculatum
Appendaged Waterleaf
ID: 0000 0000 0710 0837 [detail]
© 2010 Jeff Abbas

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


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