Flora of North America species comparison

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Erigeron glacialis

Erigeron glacialis var. hirsutus

glacier fleabane, subalpine fleabane, wandering fleabane
Photo is of parent taxon

wandering fleabane
Habit Perennials, 5–55(–70) cm; rhizomatous, fibrous-rooted, caudices usually simple, thick.
Stems

erect to ascending, hirsute or hirsuto-villous to densely strigillose (hairs loosely appressed, slightly crinkled), eglandular.

Leaves

basal (usually persistent) and cauline;

basal blades linear-oblanceolate to broadly lanceolate or spatulate, (20–)30–160(–200) × 7–45 mm;

cauline gradually reduced distally (bases distinctly subclasping, except when greatly reduced), margins entire, faces glabrous or glabrate, hirsute, or villous to sparsely villosulous, eglandular.

faces hirsute to hirsuto-villous.
Peduncles

hirsute to hirsuto-villous (immediately proximal to heads).
Involucres

6–9(–12) × 10–22(–25) mm.

Ray florets/Ray corollas

30–80;

corollas usually blue to rose purple or pink, sometimes white to pale blue, 8–16(–25) mm (mostly 1.5–3 mm wide), laminae coiling.

purplish to pink or white.
Disc corollas

3.8–6 mm.

Phyllaries

in 2–3(–4) series (faces and margins) usually glabrous, rarely sparsely villous (cross walls not colored), densely and evenly stipitate-glandular.

Heads

1(–8).

Cypselae

2.5–2.8 mm, (4–)5(–7)-nerved, faces sparsely strigose;

pappi: outer of setae, inner of 20–30 bristles.

Erigeron glacialis

Erigeron glacialis var. hirsutus
Phenology Flowering Jul–Aug.
Habitat Clearings, talus, meadows
Elevation 2200–3200 m (7200–10500 ft)
Distribution
from FNA
AK; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY; AB; BC; YT
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; NV
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Peduncles densely strigillose with loosely appressed, slightly crinkled hairs; leaf faces glabrous or villous
var. glacialis
1. Peduncles hirsute to hirsuto-villous; leaf faces hirsute to hirsuto-villous
var. hirsutus
Source FNA vol. 20, p. 329. FNA vol. 20, p. 329.
Parent taxa Asteraceae > tribe Astereae > Erigeron Asteraceae > tribe Astereae > Erigeron > Erigeron glacialis
Sibling taxa
E. abajoensis, E. acomanus, E. acris, E. aequifolius, E. algidus, E. aliceae, E. allocotus, E. alpiniformis, E. anchana, E. annuus, E. aphanactis, E. arenarioides, E. argentatus, E. arisolius, E. arizonicus, E. asperugineus, E. aureus, E. barbellulatus, E. basalticus, E. bellidiastrum, E. bigelovii, E. biolettii, E. blochmaniae, E. bloomeri, E. breweri, E. caespitosus, E. calvus, E. canaani, E. canus, E. cascadensis, E. cavernensis, E. cervinus, E. chrysopsidis, E. clokeyi, E. compactus, E. compositus, E. concinnus, E. consimilis, E. corymbosus, E. coulteri, E. cronquistii, E. davisii, E. decumbens, E. denalii, E. disparipilus, E. divergens, E. eatonii, E. elatior, E. elatus, E. elegantulus, E. elmeri, E. engelmannii, E. evermannii, E. eximius, E. filifolius, E. flabellifolius, E. flagellaris, E. flettii, E. foliosus, E. formosissimus, E. garrettii, E. geiseri, E. glabellus, E. glaucus, E. goodrichii, E. gracilis, E. grandiflorus, E. greenei, E. heliographis, E. hessii, E. howellii, E. humilis, E. hyperboreus, E. hyssopifolius, E. inornatus, E. jonesii, E. kachinensis, E. karvinskianus, E. klamathensis, E. kuschei, E. lackschewitzii, E. lanatus, E. lassenianus, E. latus, E. leibergii, E. leiomerus, E. lemmonii, E. linearis, E. lobatus, E. lonchophyllus, E. maguirei, E. mancus, E. maniopotamicus, E. mariposanus, E. melanocephalus, E. miser, E. modestus, E. muirii, E. multiceps, E. nanus, E. nauseosus, E. nematophyllus, E. neomexicanus, E. nivalis, E. ochroleucus, E. oreganus, E. oreophilus, E. ovinus, E. oxyphyllus, E. pallens, E. parishii, E. parryi, E. peregrinus, E. petrophilus, E. philadelphicus, E. pinnatisectus, E. piperianus, E. piscaticus, E. poliospermus, E. porsildii, E. pringlei, E. procumbens, E. pulchellus, E. pulcherrimus, E. pumilus, E. purpuratus, E. pygmaeus, E. quercifolius, E. radicatus, E. reductus, E. religiosus, E. rhizomatus, E. robustior, E. rybius, E. rydbergii, E. salishii, E. salmonensis, E. sanctarum, E. saxatilis, E. sceptrifer, E. scopulinus, E. serpentinus, E. sionis, E. sivinskii, E. sparsifolius, E. speciosus, E. strigosus, E. subglaber, E. subtrinervis, E. supplex, E. tenellus, E. tener, E. tenuis, E. tracyi, E. trifidus, E. tweedyi, E. uintahensis, E. uncialis, E. uniflorus, E. untermannii, E. ursinus, E. utahensis, E. vagus, E. velutipes, E. vernus, E. versicolor, E. vetensis, E. vicinus, E. vreelandii, E. watsonii, E. wilkenii, E. yukonensis
E. glacialis var. glacialis
Subordinate taxa
E. glacialis var. glacialis, E. glacialis var. hirsutus
Synonyms Aster glacialis, E. salsuginosus var. glacialis E. peregrinus var. hirsutus
Name authority (Nuttall) A. Nelson: Bot. Gaz. 37: 270. (1904) (Cronquist) G. L. Nesom: Sida 21: 671. (2004)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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