Isocoma menziesii var. sedoides

(Greene) G. L. Nesom

Phytologia 70: 99. 1991.

Basionym: Bigelowia veneta var. sedoides Greene Bull. Calif. Acad. Sci. 2: 400. 1887 (as Bigelovia)
Synonyms: Haplopappus venetus var. sedoides (Greene) Munz Isocoma veneta var. sedoides (Greene) Jepson
Treatment appears in FNA Volume 20. Treatment on page 443. Mentioned on page 442.

Stems decumbent, prostrate, or commonly pendent from cliff edges; herbage glabrous, eglandular. Leaf-blades broadly obovate or spatulate to oblanceolate, 25–40 × 6–9 mm, thick-fleshy, margins coarsely serrate. Heads in dense, capitate arrays. Corollas 5–7 mm. Cypselae 2.5–3.5 mm.


Phenology: Flowering (Apr–)Jun–Dec.
Habitat: Dunes, talus slopes, cliff edges, coastal scrub
Elevation: 0–20 m

Distribution

V20-1015-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

The coastal habitats, low habit, and broad, fleshy-thick leaves of var. sedoides are characteristic. Intermediates with var. vernonioides have been collected at every locality where var. sedoides occurs, and some identifications will have to be made arbitrarily. H. M. Hall (1928) treated var. sedoides within var. vernonioides.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
Guy L. Nesom +
(Greene) G. L. Nesom +
decurrent +
Bigelowia veneta var. sedoides +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
obovate +  and spatulate or oblanceolate +
linear;oblanceolate or obovate +
rugulose +  and muricate +
not 2-lipped +  and actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
subterete +, terete +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and Mexico (Baja California) +
0–20 m +
gland-dotted;gland-dotted +
sericeous +, tomentose +, glabrous +, villous +  and hispidulous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dunes, talus slopes, cliff edges, coastal scrub +
indeterminate +
heterogamous +  and homogamous +
not resinous +
each +  and sessile +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
obconic;turbinate or campanulate +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
spatulate;oblanceolate +
thick-fleshy +
deltate +
toothed +  and lobed +
2-carpellate +
persistent +
Flowering (Apr–)Jun–Dec. +
oblong +  and elliptic-lanceolate +
styliferous +, neuter +  and pistillate +
bearing subulate enations +, hairy +  and bristly +
concave;usually flat;conic +
exalbuminous +
eglandular +  and few-branched +
resinous +
gland-dotted +
pendent +  and prostrate +
stipitate-glandular +, tomentose +, villous +, hispidulous +  and glabrous +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus venetus var. sedoides +  and Isocoma veneta var. sedoides +
Isocoma menziesii var. sedoides +
Isocoma menziesii +
variety +
goblet--shaped +
ampliate +
dark orange-resinous +
120 cm1,200 mm <br />1.2 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
20 cm200 mm <br />0.2 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
120 cm1,200 mm <br />1.2 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +