Monday, February 15, 2016

Datura wrightii (Jimson Weed, Sacred Datura)

5/20/00 Gabrielino Trail (JPL to Oakwilde), Lower Arroyo Seco,
San Gabriel Mountains, Los Angeles County, CA 

4/27/03 Gabrielino Trail (JPL to Oakwilde)

4/4/04 Wash north of Box Canyon Road, Mecca Hills, Riverside County, CA

7/27/97 Big Morongo Canyon Preserve, San Bernardino County, CA


COMMON NAME: Jimson Weed, Sacred Datura

SPECIES: Datura wrightii

FAMILY: Solanaceae (Nightshade Family)


LOCATION: Big Morongo Canyon Preserve, San Bernardino County, CA


Treatment from The Jepson Manual (1993):

Annual or perennial herb 5–15 dm

Stem whitish puberulent

Leaf 7–20 cm, ovate, entire or coarsely lobed

Flower erect to nodding; calyx 8–12 cm, ribbed toward base, lobes ± 2 cm; corolla 15–20 cm, puberulent, white, lobes 1–2 cm, tips long, narrow; filaments 13–15 cm, anthers 12–15 mm; style 15–18 cm

Fruit irregularly valved, nodding, 25–30 mm wide, puberulent; prickles 5–12 mm

Seeds 5 mm, flat, tan; margin grooved

Ecology: Sandy or gravelly open areas

Elevation: < 2200 m.  

Bioregional distribution: Inner North Coast Ranges, c&s Sierra Nevada Foothills, Tehachapi Mountain Area, Great Central Valley, Central Western California, Southwestern California, Desert 

Distribution outside California: to Utah, Texas, Mexico

Flowering time: Apr–Oct

Sometimes cultivated for showy flowers; may have been introduced by early Spanish; may be the same as  D. inoxia J.S. Mill

Synonyms: D. meteloides A.DC

native to Mex

Horticultural information: DRN, SUN: 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24 &IRR: 11, 12, 13; occasionally. INV.

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