Pseudognaphalium microcephalum
Pseudognaphalium roseum
felt-leaf everlasting, San Diego rabbit-tobacco, Wright's cudweed
rosy cudweed, rosy rabbit-tobacco
persistently grayish tomentose, not glandular, (3–5 mm diam. near bases).
persistently woolly-tomentose, not glandular.
blades narrowly oblanceolate, 2–5(–8) cm × 5–10(–18) mm (gradually smaller distally, becoming lanceolate), bases not clasping, not decurrent, margins flat, faces weakly bicolor, tomentose (adaxial less densely), not glandular.
blades oblong-lanceolate to oblanceolate, mid-cauline 3–7 cm × (3–)6–15(–20) mm, bases clasping to subclasping, not decurrent, margins usually undulate, faces concolor or weakly bicolor, usually woolly-tomentose, sometimes tardily glabrescent adaxially, stipitate- or sessile-glandular beneath tomentum.
turbinate-campanulate, 5–6 mm.
campanulate, 4–4.5 mm.
29–49.
45–90(–110).
5–9.
(5–)6–12(–18).
in 4–5 series, white (opaque, dull), ovate to oblong-ovate (inner narrower, all usually with filiform but definitely thickened keel and slight apiculum), tomentose (at least bases).
in 5–6 series, usually white, sometimes pink (opaque or hyaline, dull to shiny), ovate to ovate-oblong, glabrous.
in loose, corymbiform arrays.
in corymbiform arrays.
ridged, smooth to weakly papillate-roughened.
weakly ridged, smooth.
= 28.
Pseudognaphalium microcephalum
Pseudognaphalium roseum
Pseudognaphalium microcephalum is characterized by stems commonly stiffly erect and slightly zigzag distally, relatively thick (3–5 mm diam. near bases), and closely grayish tomentose, leaves oblanceolate, sessile, sometimes clasping, not decurrent, and weakly bicolor, and heads usually in open, corymbiform arrays.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Pseudognaphalium roseum usually grows above 1000 m in Mexico; it grows below 50 m in California, where it is probably adventive. The closest collections of the species southward from California are from Sinaloa and southern Chihuahua. It is abundant in Mexico only in the eastern and southern states.
Pseudognaphalium roseum is recognized by its persistently tomentose stems and leaves, the leaves clasping to subclasping and non-decurrent, weakly bicolor and sessile-glandular beneath the tomentum, often relatively thick stems, relatively large heads with relatively numerous, white or pink, opaque phyllaries, relatively numerous florets, and smooth-faced cypselae. It has been confused with P. canescens; plants of P. roseum with relatively few bisexual florets can be distinguished from P. canescens by their subclasping leaves commonly with closely wavy margins, broader and more numerous phyllaries, and smooth-faced cypselae. Plants from southern California are atypical in their slightly smaller heads.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
