Diodella teres

(Rough Buttonweed)


Diodella teres, Johnson City Park, Blanco Co. 5230


Diodella teres, Johnson City Park, Blanco Co. 5225


Diodella teres, Johnson City Park, Blanco Co. 5233

Scientific Name Diodella teres (Diodia teres, Hexasepalum teres) USDA PLANTS Symbol DITE2
Common Name Rough Buttonweed, Poor Joe ITIS Taxonomic Serial No. 512309
Family Rubiaceae (Madder) SEINet
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Description Habitat: Usually dry, poor, sandy soils in disturbed areas, fields, prairies, pastures and woodland openings.
Plant: Erect, sprawling or spreading annual; hairy stems up to 1 foot long.
Leaves: Opposite, linear to lanceolate, up to 2 inches long and 3/8-inch wide, but usually smaller; sessile or clasping; edges coarse-hairy; bristle-like stipules below the blossoms at the leaf junctions sometimes extending beyond the blossom.
Inflorescence: Very small (less than 1/4-inch across) white to pinkish flowers growing singly or a few from leaf axils; funnel-shaped corolla with 3 or 4 pointed lobes, 3 or 4 stamens and one stigma.
Bloom Period: May to November.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Wildflowers of Texas" by Michael Eason and "Wildflowers of Texas" by Geyata Ajilvsgi.
BONAP Distribution Map

Map Color Key
Texas Status:

Banner photo of Castilleja indivisa and Lupinus ssp. taken along FM 1323 north of Johnson City, Blanco County

© Tom Lebsack 2024