Erigeron anchana

G. L. Nesom

Phytologia 69: 231. 1990.

Common names: Sierra Ancha fleabane
Treatment appears in FNA Volume 20. Treatment on page 309. Mentioned on page 272.

Perennials 7–22 cm; taprooted, caudex branches relatively thick, short, retaining old leaf-bases. Stems ascending to somewhat pendent, sparsely strigose to glabrate, eglandular. Leaves basal (persistent) and cauline (petioles about 2 times blade lengths); basal blades obovate-spatulate, (30–) 40–90 × 3–8 mm, margins entire or with 1 (–2) pairs of deep lobes or teeth, faces sparsely ascending-strigose to glabrate, eglandular; cauline blades oblanceolate at midstem, only slightly reduced distally. Heads 1–3 (from distal branches). Involucres 3–3.5 × 5–7 mm. Phyllaries in 3–4 series, (purplish, midveins orange-resinous, slightly swollen) glabrous or sparsely strigose, sometimes sparsely minutely glandular. Ray-florets 14–36; corollas white, drying white to lavender, 6–8 mm, laminae reflexing. Disc corollas 2–2.8 mm (veins prominently orange-resinous). Cypselae 1.2–1.4 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae or scales, inner of 19–26 bristles. 2n = 18.


Phenology: Flowering (Apr–)Jun–Nov.
Habitat: Cliff crevices, ledges, soil pockets among boulders
Elevation: 1100–2100 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.
... more about "Erigeron anchana"
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 +
G. L. Nesom +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
4 cm40 mm <br />0.04 m <br /> (9 cm90 mm <br />0.09 m <br />) +
obovate-spatulate +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
decurrent +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
Sierra Ancha fleabane +
not 2-lipped +  and actinomorphic +
white +  and lavender +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.2 cm2 mm <br />0.002 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
fertile +  and bisexual +
1100–2100 m +
strigose +, sparsely ascending-strigose +  and glabrate +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Cliff crevices, ledges, soil pockets among boulders +
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 />) +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
turbinate;hemispheric +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
with 1(-2) pairs +  and entire +
not +  and scarious +
2-carpellate +
Flowering (Apr–)Jun–Nov. +
3-nerved +  and 1-nerved +
strigose +  and glabrous +
narrowly elliptic +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
prostrate +  and decumbent +
pendent +  and ascending to somewhat +
sparsely strigose +  and glabrate +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron anchana +
Erigeron +
species +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
7 cm70 mm <br />0.07 m <br /> (22 cm220 mm <br />0.22 m <br />) +
tree +, shrub +  and subshrub +