Datura discolor

Bernhardi

Neues J. Pharm. Aerzte 26: 149. 1833.

Common names: Desert thorn-apple small datura
Weedy
Synonyms: Datura thomasii Torrey
Treatment appears in FNA Volume 14.
Revision as of 21:34, 6 October 2024 by imported>Volume Importer
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Herbs annual or short-lived perennial, to 10 dm. Stems usu­ally hairy, sometimes glabrous. Leaf blades ovate, to 18 × 16 cm, margins entire or dentate, abaxial surface hairy, adaxial surface glabrous. Flowers: calyx hairy along veins, tube cylin­dric, 5-toothed; corolla white throat with purple ring, trumpet-shaped, 8–15 cm, acuminate lobes alternating with larger lobules. Capsules pendent, regularly dehisc­ing by 4 valves, pericarp dry, hairy, with prickles to 3.2 cm; calyx remnant accrescent (sometimes reflexed). Seeds black, 3–4.5 mm, convex marginal ridge absent, testa rugose; caruncle present. 2n = 24.


Phenology: Flowering Mar–Oct.
Habitat: Streamsides, irrigation ditches, road and trail margins, waste places, desert shrublands, grasslands, pinyon-juniper-oak woodlands.
Elevation: 0–600(–1800) m.

Distribution

Ariz., Calif., Mexico, Central America, introduced nearly worldwide.

Discussion

Outside of its typical flowering period, Datura discolor flowers sporadically after rains.

Selected References

None.

Lower Taxa

None.
... more about "Datura discolor"
Robert A. Bye +
Bernhardi +
Desert thorn-apple +  and small datura +
Ariz. +, Calif. +, Mexico +, Central America +  and introduced nearly worldwide. +
0–600(–1800) m. +
Streamsides, irrigation ditches, road and trail margins, waste places, desert shrublands, grasslands, pinyon-juniper-oak woodlands. +
Flowering Mar–Oct. +
Neues J. Pharm. Aerzte +
Datura thomasii +
Datura discolor +
species +