Datura innoxia |
Datura ferox |
|
---|---|---|
angel's-trumpet, downy thorn-apple, Indian-apple, pricklyburr |
Chinese thornapple, fierce thorn-apple |
|
Habit | Herbs perennial, to 10 dm, roots tuberous. | Herbs annual, to 10 dm. |
Stems | usually villous-pubescent, sometimes glabrous. |
puberulent, sometimes glabrescent. |
Leaf | 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 broadly ovate, to 13 × 8 cm, margins usually sinuate-dentate, sometimes pinnately lobed, surfaces glabrescent. |
Flowers | 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 with minute pubescence along veins, tube cylindric, 5-toothed; corolla white, trumpet-shaped, 4–6 cm, acuminate lobes alternating with sinuses. |
Capsules | pendent, irregularly dehiscent, pericarp fleshy, hairy, with prickles 10 mm; calyx remnant slightly accrescent. |
erect, dehiscent by 4 valves, pericarp dry, sparsely hairy, with prickles unequal, some 15+ mm, proximals shorter than distals; calyx remnant not accrescent. |
Seeds | brown, 4–6 mm, convex marginal ridge present, testa smooth; caruncle present. |
black, 4–4.5 mm, convex marginal ridge absent, testa rugose; caruncle absent. |
2n | = 24. |
= 24. |
Datura innoxia |
Datura ferox |
|
Phenology | Flowering Jul–Oct. | Flowering Jun–Sep. |
Habitat | Streamsides, road and trail margins, waste places, desert shrublands, grasslands. | Cultivated fields, irrigation ditches, road and trail margins, waste places. |
Elevation | 0–2000 m. (0–6600 ft.) | 0–150 m. (0–500 ft.) |
Distribution |
AL; AR; CT; DC; FL; GA; IL; IN; KS; KY; MD; MI; MO; MS; NC; NJ; NM; NY; OH; OK; PA; SC; TN; TX; WI; WV; ON; QC; SK; Mexico; Central America; West Indies; n South America (Colombia, Ecuador, Venezuela) [Introduced nearly worldwide]
|
AL; AR; CA; GA; NC; NV; NY; PA; occasional nearly worldwide [Introduced in North America] |
Discussion | 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.) |
The origin and native status of Datura ferox is unresolved, although China has been cited as the country of origin since Linnaeus. The most extensive phytogeographic distribution of this species is in northern Argentina. Its association with ship ballast and seed stock of monocultural crops may explain its local abundance when introduced. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 14. | FNA vol. 14. |
Parent taxa | Solanaceae > Datura | Solanaceae > Datura |
Sibling taxa | ||
Synonyms | D. meteloides | |
Name authority | Miller: Gard. Dict. ed. 8, Datura no. 5. (1768) — (as inoxia) | Linnaeus: Demonstr. Pl., 6. (1753) |
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