Thelesperma subnudum

A. Gray

Proc. Amer. Acad. Arts 10: 72. 1874.

Synonyms: Thelesperma caespitosum Dorn Thelesperma marginatum Rydberg Thelesperma pubescens Dorn Thelesperma pubescens var. caespitosum (Dorn) C. J. Hansen Thelesperma subnudum var. alpinum S. L. Welsh Thelesperma subnudum var. marginatum (Rydberg) Cronquist Thelesperma subnudum var. pubescens (Dorn) S. L. Welsh Thelesperma windhamii
Treatment appears in FNA Volume 21. Treatment on page 201. Mentioned on page 200.

Perennials, 10–30(–40+) cm (caudices often woody). Cauline leaves mostly crowded over proximal 1/4(–1/2) of plant heights, internodes mostly 1–5(–35 mm); lobes mostly oblanceolate to linear, (5–)10–35(–45+) × (1–)2–3(–5) mm. Calyculi of 7–9 deltate to lance-linear bractlets 2–4+ mm. Ray florets 0, or 8; laminae yellow, (6–)12–20+ mm. Disc corollas yellow, sometimes with red-brown nerves, throats equal to or longer than lobes. Cypselae 5–7 mm; pappi usually 0, rarely 0.1–0.5 mm. 2n = 22, 24.

Phenology: Flowering May–Sep.
Habitat: Openings in pinyon/juniper or yellow-pine forests, often on talus or "balds"
Elevation: 1000–2900 m



Alta., Ariz., Colo., Mont., Nev., N.Mex., N.Dak., Utah, Wyo.


As here circumscribed, Thelesperma subnudum includes plants that have been treated as distinct species and/or varieties (some of which have been treated as of conservation concern). See C. J. Hansen et al. (2002) for an alternate interpretation of T. subnudum.

Selected References


Lower Taxa

... more about "Thelesperma subnudum"
John L. Strother +
A. Gray +
Alta. +, Ariz. +, Colo. +, Mont. +, Nev. +, N.Mex. +, N.Dak. +, Utah +  and Wyo. +
1000–2900 m +
Openings in pinyon/juniper or yellow-pine forests, often on talus or "balds" +
Flowering May–Sep. +
Proc. Amer. Acad. Arts +
Illustrated +  and Endemic +
Thelesperma caespitosum +, Thelesperma marginatum +, Thelesperma pubescens +, Thelesperma pubescens var. caespitosum +, Thelesperma subnudum var. alpinum +, Thelesperma subnudum var. marginatum +, Thelesperma subnudum var. pubescens +  and Thelesperma windhamii +
Thelesperma subnudum +
Thelesperma +
species +