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Diodia teres Walter
POORJOE
Diodella teres

Life   Plantae   Dicotyledoneae   Rubiaceae   Diodia

Diodia teres, to right of Diodia virginiana, Buttonweed
© Copyright Sheryl Pollock 2011 · 9
Diodia teres, to right of Diodia virginiana, Buttonweed

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Links

Associates · map
FamilyScientific name @ source (records)
Halictidae  Augochlora pura @ BBSL (1)

Augochloropsis sumptuosa @ BBSL (1)

Halictus parallelus @ AMNH_BEE (1)

Lasioglossum vierecki @ AMNH_BEE (1)
Megachilidae  Megachile albitarsis @ BBSL (2); AMNH_BEE (1)

Megachile mendica @ BBSL (2)

Megachile texana @ BBSL (1)
Mycosphaerellaceae  Cercospora diodiae-virginianae @ BPI (2)

Cercospora diodiae @ BPI (23)
Pucciniaceae  Puccinia lateritia @ BPI (1)

Uromyces spermacoces @ 017254A (1); BPI (121); 017254B (1)
Typhulaceae  Sclerotium rolfsii @ BPI (1)
Uropyxidaceae  Aecidium diodiae @ BPI (1)

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Following modified from Delaware Wildflowers
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Delaware Wildflowers  •  Scientific names

Diodella teres (Walt.) Small ( Diodia teres ) Well-drained Buttonweed
Rubiaceae — Madder family
Native
Diodella teres
Cape Henlopen State Park
August 2018 Diodella teres
Choptank Mills
August 2001 Diodella teres
Rehoboth Beach
August 2011 Diodella teres
Rehoboth Beach
September 2017 Diodella teres
Cape Henlopen State Park
August 2018

Search Google Delaware USDA

Photos copyright David G. Smith

Delaware Wildflowers main page

Following modified from MissouriPlants.com
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Diodia teres Walt.

Rough Buttonweed

Diodia teres plant

Family - Rubiaceae

Stems - Erect to prostrate, +20cm tall, herbaceous, 4-angled, variously pubescent, reddish with age and in strong sun, from taproot.

Leaves - Opposite, sessile, entire to denticulate, linear to linear-lanceolate, variously pubescent, to 5cm long, 6mm broad, acute to aristate. Stipule (membrane) connecting leaf bases with reddish erect capillary bristles.

Diodia teres bristles Bristles of stipules.

Inflorescence - Axillary clusters of 1 to 3 sessile flowers.

Flowers - Corolla lilac to whitish, 4-lobed, funnelform, 4-6mm long, pubescent externally. Lobes acute to aristulate. Stamens 4, adnate near apex of corolla tube, exserted (slightly). Anthers pale yellow to whitish. Stigma biglobose. Ovary inferior. Sepals 4, lanceolate, green, to 2mm long, persistent on fruit. Fruit pubescent, biglobose, splitting into 2 nutlets.

Diodia teres flowers Flower close-up.

Flowering - June - October.

Habitat - Waste ground, disturbed sites, gravel beds along streams, glades, prairies, pastures, railroads.

Origin - Native to U.S.

Other info. - This is a fairly common plant in the lower 2/3 of the state. It is capable of growing in some very inhospitable locations. The plant is easy to identify in the field because of its bluish flowers and long stipular bristles.

Photographs taken off Lee Rd 10, Auburn, Al., 9-29-04.


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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=DITE2 ---> https://plants.usda.gov/java/profile?symbol=DITE2
https://plants.usda.gov/java/profile?symbol=DITE2 ---> http://plants.usda.gov/core/profile?symbol=DITE2
http://plants.usda.gov/core/profile?symbol=DITE2 ---> https://plants.usda.gov/core/profile?symbol=DITE2
&pull 20q v5.145 20180528: Error 500 read timeout https://plants.usda.gov/core/profile?symbol=DITE2

Following modified from CalPhotos
   Top | See original

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

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Number of matches : 9
Query: SELECT * FROM img WHERE ready=1 and taxon like "Diodia teres%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Diodia teres
Diodia teres
Poor Joe
ID: 0000 1111 2222 0670 [detail]
© 2016 Keir Morse

Diodia teres
Diodia teres
Poor Joe
ID: 0000 1111 2222 0671 [detail]
© 2016 Keir Morse

Diodia teres
Diodia teres
Poor Joe
ID: 0000 1111 2222 0672 [detail]
© 2016 Keir Morse

Diodia teres
Diodia teres
Poor Joe
ID: 0000 1111 2222 0673 [detail]
© 2016 Keir Morse

Diodia teres
Diodia teres
Poor Joe
ID: 0000 1111 2222 0674 [detail]
© 2016 Keir Morse

Diodia teres
Diodia teres
Poor Joe
ID: 0000 1111 2222 0675 [detail]
© 2016 Keir Morse

Diodia teres
Diodia teres
Poor Joe
ID: 0000 1111 2222 0676 [detail]
© 2016 Keir Morse

Diodia teres
Diodia teres
Poor Joe
ID: 0000 1111 2222 0677 [detail]
© 2016 Keir Morse

Diodia teres
Diodia teres
Poor Joe
ID: 0000 1111 2222 0678 [detail]
© 2016 Keir Morse

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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