Mentzelia decapetala (Pursh) Urb.

국표에 없다.

Mentzelia decapetala (commonly known as tenpetal blazingstar, evening-star, candleflower, gumbo lily, or chalk lily) is a herbaceous biennial or short-lived perennial with large white flowers that bloom at night. It is native to dry areas in the western United States.

Mentzelia decapetala - Wikipedia

General Information

Plants biennial or perennial, bushlike, perennials with ground-level caudices. Stems solitary, erect, straight; branches distal or along entire stem, proximal or distal longest, antrorse, straight to upcurved; hairy. Leaves: blade 72–295 × 14–45 mm, widest intersinus distance 10.1–23.3 mm; proximal oblanceolate or elliptic, margins serrate to pinnate, teeth or lobes 16–26, slightly antrorse, 1–16.5 mm; distal elliptic to lanceolate, base clasping or not, margins serrate to pinnate, teeth or lobes 9–20, slightly antrorse, 5.3–13.7 mm; surfaces with needlelike trichomes. Bracts: margins pinnate. Flowers: petals white, 47–75 × 13–22.7 mm, apex acute to attenuate, glabrous abaxially; stamens white to yellow, 5 outermost petaloid, filaments spatulate, strongly clawed, 48–75 × 12–23 mm, without anthers, second whorl with anthers; anthers straight after dehiscence, epidermis smooth; styles 36–53 mm. Capsules cylindric, 30–43 × 12–17 mm, base tapering, not longitudinally ridged. Seeds 2.3–4 mm; coat anticlinal cell walls straight, papillae 4–10 per cell. 2n = 22.

• Provided by: [A].Flora of North America @ efloras.org

Stout, sparingly branched biennial 2–5 dm; lvs sessile or short-petioled, narrowly lanceolate or oblong, sharply cleft or pinnatifid, the larger 6–15 cm; pet 10, pale yellow to nearly white, 5–7 cm; stamens 100–200; fr 3–5 cm; 2n=22. Dry prairies and plains; N.D. to Alta. and Ida., s. to w. Io., Tex., and n. Mex.; adventive in Ill. July–Sep. (Nuttallia d.)

• Provided by: [C].Manual of Vascular Plants of Northeastern US and Canada

Mentzelia decapetala (Pursh) Urb. (worldfloraonline.org)

https://youtu.be/RYuANkJADKM