Lasthenia coronaria

(Nuttall) Ornduff

Univ. Calif. Publ. Bot. 40: 76. 1966.

Common names: Crowned or royal goldfields
Basionym: Ptilomeris coronaria Nuttall Trans. Amer. Philos. Soc., n. s. 7: 382. 1841
Synonyms: Baeria californica (Hooker) K. L. Chambers Baeria coronaria (Nuttall) A. Gray
Treatment appears in FNA Volume 21. Treatment on page 347. Mentioned on page 346.

Annuals, to 40 cm (herbage sweetly scented). Stems erect, branched distally, usually glandular-puberulent (often with longer nonglandular hairs as well). Leaves linear, 15–60 × 0.5–5 mm, (not fleshy) margins entire or 1–2-pinnately lobed, faces hairy. Involucres hemispheric to obconic, 4–7 mm. Phyllaries 6–14, lanceolate to ovate, hairy. Receptacles conic, smooth, muricate, or pitted, hairy. Ray-florets 6–15; (corollas yellow) laminae linear-oblong or oblong, 3–10 mm. Anther appendages elliptic, acute (style apices ± deltate with apical tufts of hairs and subapical fringes of shorter hairs). Cypselae black, linear to narrowly clavate, to 2.5 mm, hairy; pappi usually of 5–6+ lanceolate to ovate scales (1–5 uniaristate), sometimes of 4–5 subulate, aristate scales, or 0.2n = 8, 10.


Phenology: Flowering Mar–May.
Habitat: Sunny, open grassy areas
Elevation: 0–700 m

Distribution

V21-867-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

Pappus, head size, and branching pattern vary in Lasthenia coronaria. Two types of pappi are often found within a head and sometimes in different individuals of a population. The most distinctive feature of this species is its glandular herbage, which produces a characteristic sweet scent not present in any other lasthenia.

Selected References

None.

Lower Taxa

None.
... more about "Lasthenia coronaria"
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† +
(Nuttall) Ornduff +
decurrent +
Ptilomeris coronaria +
compound +  and simple +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
Crowned or royal goldfields +
yellow +  and orangish +
pappose +  and epappose +
4 +  and 18 +
papillate +
linear +  and narrowly clavate +
fertile +  and bisexual +
fertile +  and bisexual +
Calif. +  and Mexico (Baja California) +
0–700 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Sunny, open grassy areas +
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 />) +
hemispheric;obconic +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
oblong +  and linear-oblong +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
sessile +  and petiolate +
15mm;60mm +
pinnatifid;lobed +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
papillate +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
lobed +  and entire +
2-carpellate +
persistent +
of 1 +  and 12+ aristate +
aristate +, truncate +, laciniate +  and fimbriate +
Flowering Mar–May. +
scarious-margined +
weakly +  and flat +
6 +  and 14 +
Univ. Calif. Publ. Bot. +
pitted +, muricate +  and smooth +
4 +  and 5 +
aristate +, subulate +, lanceolate +  and ovate +
exalbuminous +
sprawling +, prostrate +  and decumbent +
appendaged +  and truncate +
with apical tufts +  and glabrous +
hirsutulous +  and glabrous +
papillate +
Baeria californica +  and Baeria coronaria +
Lasthenia coronaria +
Lasthenia sect. Ptilomeris +
species +
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 +