Erigeron bigelovii

A. Gray in W. H. Emory

in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 78. 1859.

Common names: Bigelow’s fleabane
Treatment appears in FNA Volume 20. Treatment on page 348. Mentioned on page 269.

Perennials (often short-lived), 10–30 cm; taprooted, caudices woody, simple (stems and leaves arising from near roots). Stems erect (brittle, often subintricately branched), hispidulous (hairs sometimes downcurved or deflexed), eglandular. Leaves mostly cauline (basal abruptly withering); proximal cauline blades usually linear-oblong, rarely oblanceolate to obovate, 4–10 (–20) × 2–6 mm, reduced distally, margins entire, faces hispid, minutely glandular. Heads 1 (–3) per main branch, (–20–30 in later season on wiry, brittle branches). Involucres 4–5 × 6–8 mm. Phyllaries in (2–) 3–4 series, glabrous or outer sparsely hispid, minutely glandular. Ray-florets 20–40 (–50); corollas white to pink or purplish, without abaxial midstripe, 5–9 mm, laminae not coiling or reflexing. Disc corollas 3.5–4 mm (throats slightly white-indurate and inflated). Cypselae 1.5–1.9 mm, 2-nerved, faces sparsely strigose; pappi: outer of scales, inner of 15–18 (–23) bristles. 2n = 36.


Phenology: Flowering Apr–Nov (with available moisture).
Habitat: Rocky slopes and ledges, with Agave, Yucca, Dasylirion, Prosopis, Larrea
Elevation: (1000–)1500–2100 m

Distribution

V20-801-distribution-map.gif

N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Durango), Mexico (Nuevo León), Mexico (Zacatecas)

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Erigeron bigelovii"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +, corymbiform +  and loose +
indeterminate +  and determinate +
Guy L. Nesom +
A. Gray in W. H. Emory +
decurrent +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
Bigelow’s fleabane +
not 2-lipped +  and actinomorphic +
white +  and pink or purplish +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
fertile +  and bisexual +
N.Mex. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Durango) +, Mexico (Nuevo León) +  and Mexico (Zacatecas) +
(1000–)1500–2100 m +
strigose +  and hispid +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rocky slopes and ledges, with Agave, Yucca, Dasylirion, Prosopis, Larrea +
disciform +  and discoid +
in loose , corymbiform or paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
turbinate;hemispheric +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
not coiling +
petiolate +  and sessile +
erect;spreading +
deltate +
Not (?) +  and Scarious (?) +
hispid +  and glabrous +
2-carpellate +
Flowering Apr–Nov (with available moisture). +
3-nerved +  and 1-nerved +
narrowly elliptic +  and linear-lanceolate +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
rarely oblanceolate +  and obovate +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
in W. H. Emory, Rep. U.S. Mex. Bound. +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
prostrate +  and decumbent +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron bigelovii +
Erigeron +
species +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
tree +, shrub +  and subshrub +