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feather-leaf fleabane

Habit Perennials, 4–11 cm; taprooted, caudex branches usually relatively thick, woody.
Stems

erect, sparsely to moderately hispidulous and minutely glandular, sometimes merely glandular.

Leaves

mostly basal and proximal (persistent);

basal blades spatulate to obovate (often folding), 20–40(–50) × 5–10 mm, margins pinnatifid (lobes linear), faces usually glabrate, sometimes sparsely hirsute, usually minutely glandular;

cauline blades mostly linear, abruptly reduced distally or nearly absent, margins entire, usually coarsely ciliate.

Involucres

5.5–8 × 9–13 mm.

Ray florets

40–70;

corollas usually light blue, sometimes slightly purplish, drying bluish or fading lighter, 7–12 mm, laminae reflexing.

Disc corollas

3.8–4.5 mm.

Phyllaries

in 3–5 series, sparsely hispidulous to hirsuto-villous, minutely glandular.

Heads

1.

Cypselae

1.5–1.8 mm, 2-nerved, faces sparsely strigose;

pappi: outer of setae, inner (persistent) of 25–30 bristles, with outer setae.

Erigeron pinnatisectus

Phenology Flowering late Jun–Aug.
Habitat Bluffs and ledges, moraines, subalpine and alpine meadows
Elevation 2700–3700(–4000) m (8900–12100(–13100) ft)
Distribution
from FNA
CO; NM; WY
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 20, p. 310.
Parent taxa Asteraceae > tribe Astereae > Erigeron
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. glacialis, 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. 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
Synonyms E. compositus var. pinnatisectus
Name authority (A. Gray) A. Nelson: Bull. Torrey Bot. Club 26: 246. (1899)
Web links