Pseudognaphalium canescens
Opera Bot. 104: 147. 1991.
Annuals or perennials, 20–70 (–100+) cm; taprooted. Stems persistently tomentose, not glandular (2–3 mm diam. near bases). Leaf-blades narrowly to broadly oblanceolate, mostly 2–4 (–5) cm × 2–8 (–15) mm, bases not clasping, not decurrent, margins flat, faces weakly bicolor, tomentose (adaxial less densely tomentose, sometimes sessile-glandular beneath tomentum). Heads usually in loose, corymbiform arrays. Involucres turbinate-campanulate, 4–5 mm. Phyllaries in 3–4 series, white (opaque to hyaline, dull to shiny), narrowly ovatelanceolate, glabrous. Pistillate florets (16–) 24–44. Bisexual florets (1–) 2–5 (–6), 5–6 more common in northern part of range. Cypselae ridged, weakly papillate-roughened. 2n = 28.
Phenology: Flowering Aug–Nov(–Jan).
Habitat: Lava beds, rocky sites, grasslands, oak, pine-oak, and pine woodlands
Elevation: 1100–2500(–2700) m
Distribution
Ariz., Calif., Colo., N.Mex., Okla., Tex., Utah, Mexico
Discussion
Most plants of Pseudognaphalium canescens produce white, opaque, keeled, apiculate phyllaries; in the southern portion of its range (Jalisco southeastward) and scattered localities elsewhere, the phyllaries may be more hyaline and lack a pronounced keel and apiculum.
Selected References
None.