Flora of North America species comparison

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Baccharis plummerae subsp. glabrata

Baccharis plummerae subsp. plummerae
Photo is of parent taxon

San Simeon baccharis, San Simeon or smooth baccharis, smooth baccharis
Photo is of parent taxon

Plummer's baccharis
Habit Plants 60–80 cm. Plants 60–200 cm.
Stems

glabrate, glandular.

villous, eglandular.
Leaves

linear to narrowly oblanceolate (principal 1- or 3-nerved), 8–35 × 1–2(–3) mm, margins entire or sharply serrate.

oblong to oblanceolate (principal 3-nerved), (15–)20–45(–55) × (3–)5–13 mm, sharply serrate.
2n

= 18.

Baccharis plummerae subsp. glabrata

Baccharis plummerae subsp. plummerae
Phenology Flowering Jun–Nov. Flowering (May–)Aug–Nov.
Habitat Rocky slopes near beaches, sea bluffs, serpentine rock outcrops, chaparral, brushy canyons, woodlands Rocky slopes near beach, sea bluffs, brushy canyons, oak woodlands
Elevation 0–100 m (0–300 ft) 0–1000 m (0–3300 ft)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Of conservation concern.

Known only from coastal scrub in the Santa Lucia Range, northwestern San Luis Obispo County, subsp. glabrata is generally reduced in most characters than subsp. plummerae, with smaller heads and fewer florets (R. M. Beauchamp and J. Henrickson 1995).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies plummerae occurs in the Santa Monica Mountains in Los Angeles County, Matilija Canyon in Ventura County, the western slopes of the Santa Ynez Mountains and Santa Cruz Island in Ventura County (R. M. Beauchamp and J. Henrickson 1996).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 20, p. 31. FNA vol. 20, p. 31.
Parent taxa Asteraceae > tribe Astereae > Baccharis > Baccharis plummerae Asteraceae > tribe Astereae > Baccharis > Baccharis plummerae
Sibling taxa
B. plummerae subsp. plummerae
B. plummerae subsp. glabrata
Name authority Hoover: Vasc. Pl. San Luis Obispo Co., 302. (1970) unknown
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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