Pseudognaphalium obtusifolium |
Pseudognaphalium californicum |
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blunt-leaf rabbit-tobacco, eastern rabbit-tobacco, gnaphale à feuilles obtuses, old field balsam, rabbit-tobacco |
California cudweed, California everlasting, California rabbit-tobacco, ladies' tobacco |
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Habit | Annuals or winter annuals (sometimes faintly fragrant), (10–)30–100 cm; taprooted. | Annuals, biennials, or perennials, 20–40 cm; taprooted. |
Stems | white-tomentose, sometimes lightly so, usually not glandular, rarely glandular near bases. |
stipitate-glandular, sometimes lightly villous as well. |
Leaf | blades linear-lanceolate to elliptic or oblanceolate, 2.5–10 cm × 2–10 mm (relatively even-sized), bases not clasping, not decurrent, margins flat, faces bicolor, abaxial white-tomentose, adaxial green, usually glabrous or slightly glandular, sometimes with persistent light tomentum. |
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. |
Involucres | broadly campanulate, 5–7 mm. |
campanulo-globose, 5.5–7 mm. |
Pistillate florets | 38–96. |
105–140. |
Bisexual florets | 4–8(–11). |
7–12. |
Phyllaries | in 4–6 series, white (opaque, usually shiny, sometimes dull), ovate to ovate-oblong, glabrous or tomentose (bases). |
in 7–10 series, white (opaque, shiny or dull), broadly ovate to oblong-obovate, glabrous. |
Heads | in corymbiform (sometimes rounded to elongate) arrays. |
in corymbiform arrays. |
Cypselae | ridged, smooth. |
ridged, smooth. |
2n | = 28. |
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Pseudognaphalium obtusifolium |
Pseudognaphalium californicum |
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Phenology | Flowering Aug–Oct. | Flowering Apr–Jul. |
Habitat | Open sites, often disturbed, roadsides, fields, pastures, open woods, in various soils, most abundantly in sand | Sandy canyons, dry hills, coastal chaparral |
Elevation | 5–200 m (0–700 ft) | 60–800 m (200–2600 ft) |
Distribution |
AL; AR; CT; DE; FL; GA; IA; IL; IN; KS; KY; LA; MA; ME; MI; MN; MO; MS; NC; NE; NH; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV; NB; NS; ON; PE; QC
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CA; OR; Mexico (Baja California)
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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.) |
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Source | FNA vol. 19, p. 420. | FNA vol. 19, p. 423. |
Parent taxa | Asteraceae > tribe Gnaphalieae > Pseudognaphalium | Asteraceae > tribe Gnaphalieae > Pseudognaphalium |
Sibling taxa | ||
Synonyms | Gnaphalium obtusifolium, Gnaphalium obtusifolium var. praecox | Gnaphalium californicum, Gnaphalium decurrens var. californicum |
Name authority | (Linnaeus) Hilliard & B. L. Burtt: Bot. J. Linn. Soc. 82: 205. (1981) | (de Candolle) Anderberg: Opera Bot. 104: 147. (1991) |
Web links |
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