Pseudognaphalium californicum |
Pseudognaphalium viscosum |
|
---|---|---|
California cudweed, California everlasting, California rabbit-tobacco, ladies' tobacco |
sticky rabbit-tobacco, wing cudweed |
|
Habit | Annuals, biennials, or perennials, 20–40 cm; taprooted. | Annuals (viscid and unpleasantly aromatic), 30–100 cm; taprooted. |
Stems | stipitate-glandular, sometimes lightly villous as well. |
persistently white-tomentose and stipitate-glandular. |
Leaf | blades mostly narrowly oblong-lanceolate, 4–10 cm × 5–10(–20) mm (relatively even-sized distally), bases auriculate-clasping to subclasping or not, decurrent (2–10 mm) or not, margins flat or slightly revolute, faces concolor, mostly green, stipitate-glandular, viscid, sometimes lightly villous as well. |
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. |
Involucres | campanulo-globose, 5.5–7 mm. |
campanulate, 5–6 mm. |
Pistillate florets | 105–140. |
200–250. |
Bisexual florets | 7–12. |
(13–)16–29. |
Phyllaries | in 7–10 series, white (opaque, shiny or dull), broadly ovate to oblong-obovate, glabrous. |
in 5–6 series, tawny-silvery to silvery white (hyaline, shiny), ovate-lanceolate (not keeled or thickened along midribs, not apiculate), glabrous. |
Heads | in corymbiform arrays. |
in corymbiform arrays. |
Cypselae | ridged, smooth. |
not ridged, papillate-roughened. |
2n | = 28. |
= 28. |
Pseudognaphalium californicum |
Pseudognaphalium viscosum |
|
Phenology | Flowering Apr–Jul. | Flowering Jul–Sep. |
Habitat | Sandy canyons, dry hills, coastal chaparral | Rocky open sites, roadsides |
Elevation | 60–800 m (200–2600 ft) | 1400–1800 m (4600–5900 ft) |
Distribution |
CA; OR; Mexico (Baja California)
|
TX; Mexico; Central America
|
Discussion | Leaf insertion in Pseudognaphalium californicum is unusually variable: bases may be clasping to subclasping without decurrent margins or decurrent and not show any clasping tendency. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 19, p. 423. | FNA vol. 19, p. 422. |
Parent taxa | Asteraceae > tribe Gnaphalieae > Pseudognaphalium | Asteraceae > tribe Gnaphalieae > Pseudognaphalium |
Sibling taxa | ||
Synonyms | Gnaphalium californicum, Gnaphalium decurrens var. californicum | Gnaphalium viscosum |
Name authority | (de Candolle) Anderberg: Opera Bot. 104: 147. (1991) | (Kunth) Anderberg: Opera Bot. 104: 148. (1991) |
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