Datura wrightii

Stout herb to 1.2 m high; branches tomentose with retrorse simple hairs, some erect glandular hairs usually also present. Leaves ovate to angular-ovate, mostly 5–16 cm long, 4–10 cm wide, virtually entire or irregularly lobed, apex acute, base cuneate, often asymmetric, both surfaces tomentose; petiole to c. 10 cm long. Flowers erect on short indistinct pedicels; calyx 5-lobed, 6–9 cm long, lobes 10–25 mm long, sometimes not completely separating; corolla 14–20 cm long, white often tinged with lavender toward margin; corolla limb 5-lobed, the lobes ending in a point 5–13 mm long; stamens shortly exserted, anthers 10–14 mm long; style 15–17 cm long, stigma above level of anthers. Capsule subglobose, 2.5–3.5 cm long, deflexed, spiny, opening irregularly; spines numerous, slender, sharp, about equal in length, mostly 3–5 mm long; persistent calyx-base to 10 mm long; seeds 5–6 mm long, yellow-brown to grey-brown. Flowers mainly summer.