Datura innoxia
Datura discolor
angel's-trumpet, downy thorn-apple, Indian-apple, pricklyburr
desert thorn-apple, small datura
usually villous-pubescent, sometimes glabrous.
usually hairy, sometimes glabrous.
blades ovate, to 22 × 16 cm, margins entire or irregularly sinuate-dentate, surfaces villous to glabrescent, (trichomes spreading, often more dense along veins, sometimes glandular).
blades ovate, to 18 × 16 cm, margins entire or dentate, abaxial surface hairy, adaxial surface glabrous.
calyx villous along veins, hairs spreading, tube cylindric, 5-toothed;
corolla white, sometimes lavender- or purple-tinged, funnelform, 10–22 cm, sparsely hairy, glabrescent, acuminate lobes alternating with lobules of similar size.
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.
pendent, irregularly dehiscent, pericarp fleshy, hairy, with prickles 10 mm;
calyx remnant slightly accrescent.
pendent, regularly dehiscing by 4 valves, pericarp dry, hairy, with prickles to 3.2 cm;
calyx remnant accrescent (sometimes reflexed).
brown, 4–6 mm, convex marginal ridge present, testa smooth;
caruncle present.
black, 3–4.5 mm, convex marginal ridge absent, testa rugose;
caruncle present.
= 24.
= 24.
Datura innoxia
Datura discolor
Datura innoxia is native to Texas and possibly New Mexico. Elsewhere in the flora area, it is widely introduced as an ornamental and, inadvertently, as a weed.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Outside of its typical flowering period, Datura discolor flowers sporadically after rains.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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