Erigeron foliosus var. hartwegii

(Greene) Jepson

Man. Fl. Pl. Calif., 1056. 1925.

Endemic
Basionym: Erigeron hartwegii Greene Erythea 3: 21. 1895 (as hartwegi)
Treatment appears in FNA Volume 20. Treatment on page 313. Mentioned on page 312.

Leaves often mostly with 1-directional orientation to one side of stems; blades (30–) 40–60 × 1–4 mm, apices usually acute, faces glabrate to sparsely strigose. Phyllaries 0.5–0.8 mm wide, margins usually thick or only with narrow scarious rims, midnerves usually not distinct and orange-resinous, abaxial faces glabrate to sparsely strigose, sometimes sparsely, obscurely glandular; inner phyllaries (4–) 5–6 mm. Ray-florets 26–50; corollas 8–13 mm. Disc corollas 4–5.5 mm.


Phenology: Flowering Apr–Jul.
Habitat: Rocky sites, commonly along rivers, hills in oak or pine-oak woodlands
Elevation: 100–600 m

Discussion

Among the varieties of Erigeron foliosus, var. hartwegii is the most distinct, morphologically and geographically, and might justifiably be treated at specific rank.

Selected References

None.

Lower Taxa

None.
glabrate +  and sparsely strigose +
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Guy L. Nesom +
(Greene) Jepson +
decurrent +
Erigeron hartwegii +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
linear;oblanceolate +
equal-sized +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
rugulose +  and muricate +
caudex-like +
2 cm20 mm <br />0.02 m <br /> (15 cm150 mm <br />0.15 m <br />) +
not 2-lipped +  and actinomorphic +
white +  and blue +
0.8 cm8 mm <br />0.008 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.4 cm4 mm <br />0.004 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
fertile +  and bisexual +
100–600 m +
glabrate +  and sparsely strigose +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rocky sites, commonly along rivers, hills in oak or pine-oak woodlands +
disciform +  and discoid +
in loose , corymbiform or paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
turbinate;hemispheric +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
not coiling +
petiolate +  and sessile +
erect;spreading +
deltate +
not +  and scarious +
only +  and thick +
orange-resinous +
2-carpellate +
Flowering Apr–Jul. +
3-nerved +  and 1-nerved +
glabrous or +  and moderately densely strigoso-hirsute +
narrowly elliptic +  and linear-lanceolate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Man. Fl. Pl. Calif., +
bearing subulate enations +, hairy +  and bristly +
scarious +
exalbuminous +
orientation +
prostrate +  and decumbent +
ascending +, erect +  and arising +
strigose +  and glabrous +
appendaged +  and truncate +
papillate +  and smooth +
Achaetogeron +  and Trimorpha +
Erigeron foliosus var. hartwegii +
Erigeron foliosus +
variety +
inflated +  and tubular +
90 cm900 mm <br />0.9 m <br /> (100 cm1,000 mm <br />1 m <br />) +
20 cm200 mm <br />0.2 m <br /> (100 cm1,000 mm <br />1 m <br />) +