Erigeron elatus

(Hooker) Greene

Pittonia 3: 164. 1897.

Common names: Swamp fleabane vergerette élevée
Endemic
Basionym: Erigeron alpinus var. elatus Hooker Fl. Bor.-Amer. 2: 18. 1834
Synonyms: Erigeron acris var. arcuans Fernald Erigeron acris var. elatus (Hooker) Cronquist Erigeron elatus var. oligocephalus (Fernald & Wiegand) Fernald Trimorpha elata
Treatment appears in FNA Volume 20. Treatment on page 322. Mentioned on page 265.

Biennials or short-lived perennials, (6–) 10–40 (–50) cm; fibrous-rooted, caudices simple or branched, or rhizomes. Stems erect, sparsely to moderately strigose or loosely strigoso-villous or glabrate, often minutely glandular near heads. Leaves basal (persistent) and cauline; basal blades oblanceolate to spatulate, 20–80 × 2–6 mm, cauline gradually reduced distally, margins usually entire, rarely dentate, glabrous or sparsely villoso-hirsute, distal sometimes also glandular. Heads 1–5 (–8) in corymbiform arrays (on straight, spreading peduncles). Involucres 5–11 × 8–12 mm. Phyllaries in 2–3 series (inner apices attenuate to caudate), sparsely hirsute to villoso-hirsute, eglandular or sparsely minutely glandular only at tips. Ray (pistillate) florets in 2 series: outer 45–60, corollas white to pink, 5–7 mm, laminae (filiform) erect, not coiling or reflexing; inner far fewer than outer, elaminate. Disc corollas 4.2–6.2 mm. Cypselae 1.6–1.8 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 24–35 (accrescent) bristles. 2n = 36.


Phenology: Flowering (Jun–)Jul–Aug.
Habitat: Floodplain meadows, pond edges, open boggy woods, tundra
Elevation: 200–2000 m

Distribution

V20-724-distribution-map.gif

Alta., B.C., Man., Nfld. and Labr., N.W.T., Ont., Que., Sask., Yukon, Alaska, Wash.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Erigeron elatus"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Guy L. Nesom +
(Hooker) Greene +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
oblanceolate +  and spatulate +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
decurrent +
Erigeron alpinus var. elatus +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
branched +  and simple +
Swamp fleabane +  and vergerette élevée +
not 2-lipped +  and actinomorphic +
white +  and pink +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.42 cm4.2 mm <br />0.0042 m <br /> (0.62 cm6.2 mm <br />0.0062 m <br />) +
fertile +  and bisexual +
Alta. +, B.C. +, Man. +, Nfld. and Labr. +, N.W.T. +, Ont. +, Que. +, Sask. +, Yukon +, Alaska +  and Wash. +
200–2000 m +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Floodplain meadows, pond edges, open boggy woods, tundra +
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 />) +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
turbinate;hemispheric +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
reflexing +  and erect +
not coiling +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
dentate +  and entire +
villoso-hirsute +  and glabrous +
Not (?) +  and Scarious (?) +
2-carpellate +
Flowering (Jun–)Jul–Aug. +
glandular +  and eglandular +
sparsely hirsute +  and villoso-hirsute +
narrowly elliptic +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
branched +  and simple +
prostrate +  and decumbent +
appendaged +  and truncate +
papillate +  and smooth +
Erigeron acris var. arcuans +, Erigeron acris var. elatus +, Erigeron elatus var. oligocephalus +  and Trimorpha elata +
Erigeron elatus +
Erigeron +
species +
inflated +  and tubular +
40 cm400 mm <br />0.4 m <br /> (50 cm500 mm <br />0.5 m <br />) +
perennial +, short-lived +  and biennial +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
tree +, shrub +  and subshrub +