Pyrrocoma uniflora var. gossypina

(Greene) Kartesz & Gandhi

Phytologia 71: 61. 1991.

EndemicConservation concern
Basionym: Pyrrocoma gossypina Greene Pittonia 3: 23. 1896
Synonyms: Haplopappus uniflorus subsp. gossypinus (Greene) H. M. Hall
Treatment appears in FNA Volume 20. Treatment on page 424. Mentioned on page 423.

Plants 10–30 cm. Stems pale or reddish, tufted-tomentose, glabrescent. Leaves: basal blades lanceolate, 20–80 × 10–20 mm, margins entire to rigidly dentate; faces tufted-tomentose. Heads 1–5, usually in racemiform arrays, pedunculate, sometimes borne singly, terminal. Involucres 10–13 × 18–20 mm. Phyllaries loosely appressed, unequal.


Phenology: Flowering Jul–Sep.
Habitat: Dry or moist alkaline meadows, open pine forests
Elevation: 1600–2300 m

Discussion

Of conservation concern.

Variety gossypina is known only from the San Bernardino Mountains, southern California. It is recognized by its tufted-tomentose pubescence, long involucres, unequal phyllaries, and geographic isolation.

Selected References

None.

Lower Taxa

None.

"[" is not declared as a valid unit of measurement for this property."[" is not declared as a valid unit of measurement for this property.

not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
David J. Bogler +
(Greene) Kartesz & Gandhi +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
serrate or shallowly laciniate +, spinulose-dentate +  and entire +
linear +  and elliptic +
cordate +
3mm;30mm +
Pyrrocoma gossypina +
compound +  and simple +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
lanceolate;linear;oblanceolate or elliptic +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
rugulose +  and muricate +
barbellulate +  and barbellate +
not 2-lipped +  and actinomorphic +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
angled +  and subcylindric +
fertile +  and bisexual +
fertile +  and bisexual +
1600–2300 m +
tufted-tomentose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Dry or moist alkaline meadows, open pine forests +
pedunculate +
discoid +  and disciform +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
hemispheric +
1.8 cm18 mm <br />0.018 m <br /> (2 cm20 mm <br />0.02 m <br />) +
sessile +  and petiolate +
cauline +  and basal +
deltate +
entire +  and rigidly dentate +
linear +  and elliptic +
usually sharply dentate +  and laciniate +
3mm +  and 30mm +
2-carpellate +
persistent +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2 cm20 mm <br />0.02 m <br /> (12 cm120 mm <br />0.12 m <br />) +
Flowering Jul–Sep. +
with distinct , green apical patch +  and yellow-green +
appressed +  and loosely spreading +
linear-lanceolate +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Endemic +  and Conservation concern +
eglandular +, naked +, leafy to almost +  and leafy +
reddish +  and pale +
curved-ascending +  and decumbent +
glabrescent +  and tufted-tomentose +
1 +  and 7 +
appendaged +  and truncate +
papillate +  and smooth +
Haplopappus uniflorus subsp. gossypinus +
Pyrrocoma uniflora var. gossypina +
Pyrrocoma uniflora +
variety +
tubular-funnelform +
50 cm500 mm <br />0.5 m <br /> (90 cm900 mm <br />0.9 m <br />) +
stipitate-glandular +, glabrous +, tomentose +  and sericeous +
5 cm50 mm <br />0.05 m <br /> (50 cm500 mm <br />0.5 m <br />) +