Helianthella californica subsp. shastensis

(W. A. Weber) W. A. Weber

Phytologia 85: 20. 1999.

Endemic
Basionym: Helianthella californica var. shastensis W. A. Weber Amer. Midl. Naturalist 48: 30. 1952
Treatment appears in FNA Volume 21. Treatment on page 117. Mentioned on page 116.

Stems not branched. Cauline leaves mostly alternate; blades usually linear to lance-linear, sometimes lanceovate, 3–6 mm (–18+) wide. Heads borne singly. Cypselae winged; pappi of 2 ± subulate scales plus 0–4 shorter scales.


Phenology: Flowering May–Jun.
Habitat: Pine forests, scrublands
Elevation: 1300–2500 m

Discussion

Subspecies shastensis grows in Shasta, Siskiyou, and Trinity counties.

Selected References

None.

Lower Taxa

None.

"+]" is not declared as a valid unit of measurement for this property."broader" is not a number.

not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
William A. Weber +
(W. A. Weber) W. A. Weber +
bristlelike +
coroniform +
cuneate +
Helianthella californica var. shastensis +
lanceovate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
purple +  and brown +
hairy +  and glabrous +
obovate-cuneate +  and oblong +
fertile +  and bisexual +
fertile +  and bisexual +
1300–2500 m +
less hirsutulous +  and scaberulous or glabrescent +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Pine forests, scrublands +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
hemispheric +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
alternate +  and opposite +
cauline +  and basal +
deltate +
2-carpellate +
persistent +
Flowering May–Jun. +
22 +  and 32 +
unequal +  and subequal +
sterile +  and fertile +
bearing subulate enations +, hairy +  and bristly +
0 +  and 4 +
subulate +
exalbuminous +
not branched +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Helianthella californica subsp. shastensis +
Helianthella californica +
subspecies +
cylindric +
shorter to longer than campanulate +
toothed +  and entire +
20 cm200 mm <br />0.2 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
200 cm2,000 mm <br />2 m <br /> (400 cm4,000 mm <br />4 m <br />) +