Difference between revisions of "Pseudognaphalium californicum"
Opera Bot. 104: 147. 1991.
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|tribe=Asteraceae tribe Gnaphalieae | |tribe=Asteraceae tribe Gnaphalieae | ||
|genus=Pseudognaphalium | |genus=Pseudognaphalium | ||
Latest revision as of 19:54, 5 November 2020
Annuals, biennials, or perennials, 20–40 cm; taprooted. Stems stipitate-glandular, sometimes lightly villous as well. 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. Heads in corymbiform arrays. Involucres campanulo-globose, 5.5–7 mm. Phyllaries in 7–10 series, white (opaque, shiny or dull), broadly ovate to oblong-obovate, glabrous. Pistillate florets 105–140. Bisexual florets 7–12. Cypselae ridged, smooth. 2n = 28.
Phenology: Flowering Apr–Jul.
Habitat: Sandy canyons, dry hills, coastal chaparral
Elevation: 60–800 m
Distribution
Calif., Oreg., Mexico (Baja California).
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.
Selected References
None.