Lasthenia californica subsp. bakeri

(J. T. Howell) R. Chan

Madroño 48: 208. 2002.

Common names: Baker’s goldfields
EndemicConservation concern
Basionym: Baeria bakeri J. T. Howell Leafl. W. Bot. 1: 7. 1932
Synonyms: Baeria macrantha var. bakeri (J. T. Howell) D. D. Keck Lasthenia macrantha subsp. bakeri (J. T. Howell) Ornduff
Treatment appears in FNA Volume 21. Treatment on page 339. Mentioned on page 336, 338, 340.

Perennials (sometimes flowering first-year). Roots fleshy, clustered. Stems erect, branched distally, ± hairy. Leaves mostly basal; blades linear to oblong, 20–210 × 1–2+ mm, not fleshy, margins entire, faces glabrous or ± hairy. Involucres campanulate to depressed-hemispheric, 9–14 mm. Phyllaries ± persistent, 13–16 in 2 series, elliptic to ovate. Ray-florets 8–16; laminae elliptic to oblong, 5–16 mm. Anther appendages deltate to sublanceolate. Cypselae silver-gray, linear to narrowly clavate, to 4 mm, glabrous; pappi 0, or of 1–4 translucent, brown, subulate, aristate scales (sometimes variable or 0 within heads). 2n = 48.


Phenology: Flowering year round (mostly May–Jun).
Habitat: Grasslands, woodlands, coastal
Elevation: 0–500 m

Discussion

Of conservation concern.

Subspecies bakeri is found along the coast in central California. Its most distinctive feature is its fleshy, clustered roots.

Selected References

None.

Lower Taxa

None.
deltate +  and sublanceolate +
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
paniculiform +, glomerate +  and corymbiform +
indeterminate +  and determinate +
Raymund Chan +  and Robert Ornduff† +
(J. T. Howell) R. Chan +
decurrent +
Baeria bakeri +
compound +  and simple +
2 cm20 mm <br />0.02 m <br /> (21 cm210 mm <br />0.21 m <br />) +
linear;oblong +
1mm;2mm +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
Baker’s goldfields +
yellow +  and orangish +
pappose +  and epappose +
4 +  and 18 +
papillate +
linear +  and narrowly clavate +
fertile +  and bisexual +
fertile +  and bisexual +
0–500 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Grasslands, woodlands, coastal +
in more or less corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
campanulate;depressed-hemispheric +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
elliptic +  and oblong +
0.5 cm5 mm <br />0.005 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
sessile +  and petiolate +
0.55 cm5.5 mm <br />0.0055 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
8mm;210mm +
linear;oblanceolate or oblong +
0.1 cm1 mm <br />0.001 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
papillate +
deltate +
2-carpellate +
persistent +
of 1 +  and 12+ aristate +
linear +  and subulate +
Flowering year round (mostly May–Jun). +
scarious-margined +
weakly +  and flat +
13 +  and 16 +
1 +  and 4 +
aristate +  and subulate +
exalbuminous +
Endemic +  and Conservation concern +
sprawling +, prostrate +  and decumbent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Baeria macrantha var. bakeri +  and Lasthenia macrantha subsp. bakeri +
Lasthenia californica subsp. bakeri +
Lasthenia californica +
subspecies +
campanulate +
toothed +  and entire +
40 cm400 mm <br />0.4 m <br /> (60 cm600 mm <br />0.6 m <br />) +
0 cm0 mm <br />0 m <br /> (40 cm400 mm <br />0.4 m <br />) +
shrub +  and subshrub +