Lessingia germanorum

Chamisso

Linnaea 4: 203, plate 2, fig. 2. 1829.

Common names: San Francisco lessingia
Endemic
Treatment appears in FNA Volume 20. Treatment on page 455. Mentioned on page 453.

Plants 5–30 cm. Stems erect, tan to reddish-brown, glabrous or villous. Leaves: basal withering by flowering; cauline margins entire or dentate to pinnately lobed, faces eglandular, abaxial glabrous or villous. Heads usually borne singly, rarely in corymbiform arrays, at ends of branchlets. Involucres obconic to campanulate, 4–8 mm. Phyllaries purple-tipped, sometimes sparsely sessile-glandular, villous; inner scarious. Disc-florets 20–40; corollas yellow (tubes with brown-purple band inside); style-branch appendages ± truncate-penicillate, 0.1–0.4 mm. Pappi tan, equaling or longer than cypselae. 2n = 10.


Phenology: Flowering Jun–Nov.
Habitat: Remnant sand dunes in coastal scrub: of conservation concern
Elevation: 20–100 m

Discussion

Lessingia germanorum is listed (federal and state) as endangered and is known only from the Presidio (San Francisco County) and near San Bruno Mountain (San Mateo County).

Selected References

None.

Lower Taxa

None.
... more about "Lessingia germanorum"
villous +  and glabrous +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Staci Markos +
Chamisso +
decurrent +
obovate;lanceolate linear or subulate +
rugulose +  and muricate +
barbellulate +  and barbellate +
dentate to pinnately lobed +  and entire +
San Francisco lessingia +
not 2-lipped +  and actinomorphic +
5-10-nerved +  and smooth +
beaked +, 2-ribbed +  and 5-ribbed +
not compressed +, cuneiform +  and linear +
fertile +  and bisexual +
fertile +  and bisexual +
20–100 m +
puberulent +  and pilose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Remnant sand dunes in coastal scrub: of conservation concern +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
obconic;campanulate +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
spreading;erect +
lanceolate +
dentate to pinnately lobed +  and entire +
2-carpellate +
persistent +
connate +  and distinct +
Flowering Jun–Nov. +
recurved +  and erect +
lanceolate +, ovate +  and oblong +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
branched +  and simple +
tan +  and reddish-brown +
villous +  and glabrous +
truncate-penicillate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
appendaged +  and truncate +
papillate +  and smooth +
Compositae +
Lessingia germanorum +
Lessingia +
species +
2 cm20 mm <br />0.02 m <br /> (90 cm900 mm <br />0.9 m <br />) +