Pseudognaphalium viscosum
Pseudognaphalium helleri
sticky rabbit-tobacco, wing cudweed
Heller's cudweed, Heller's rabbit-tobacco
persistently white-tomentose and stipitate-glandular.
greenish, glandular-villous (without persistent tomentum, stipitate glands mostly 0.3–1 mm, often variable, stalks broadened toward bases, about equaling gland widths).
blades (crowded, internodes mostly 1–3, sometimes to 10, mm) linear-lanceolate, (2–)4–8 cm × 3–10 mm, bases not clasping, usually (at least the proximal) decurrent 3–10 mm, margins strongly revolute to revolute-undulate, faces bicolor, abaxial densely white-tomentose, adaxial densely stipitate-glandular.
blades mostly oblong-lanceolate, 2.5–7 cm × 4–20 mm, bases not clasping, not decurrent, margins flat, faces bicolor, abaxial white to gray with lightly persistent tomentum, adaxial green, both minutely stipitate-glandular.
campanulate, 5–6 mm.
campanulate, 6–7 mm.
200–250.
83–107.
(13–)16–29.
9–15.
in 5–6 series, tawny-silvery to silvery white (hyaline, shiny), ovate-lanceolate (not keeled or thickened along midribs, not apiculate), glabrous.
in 4–6 series, white (opaque, shiny), ovate to ovate-oblong or oblong, ± tomentose.
in corymbiform arrays.
in corymbiform arrays.
not ridged, papillate-roughened.
ridged, smooth.
= 28.
Pseudognaphalium viscosum
Pseudognaphalium helleri
Reports of Pseudognaphalium viscosum from the flora for states other than Texas are based on plants of P. macounii. Pseudognaphalium viscosum is similar to P. leucocephalum, which has broader and white-opaque phyllaries, longer bisexual corollas, and smooth cypselae.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Pseudognaphalium helleri and P. micradenium are similar to P. obtusifolium in most features; both differ in their glandular stems without the persistent whitish tomentum of P. obtusifolium.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
OR
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
LA Plants
