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Leiberg's daisy, Leiberg's fleabane

rayless shaggy fleabane

Habit Perennials, 7–25 cm; taprooted, caudices woody, branches usually vertical or horizontal (2–10 cm), sheathed by persistent leaf bases. Perennials, 2–20(–30) cm; taprooted, caudices branched.
Stems

erect, sparsely to moderately hispidulous to hirsute, minutely glandular to stipitate-glandular.

erect to slightly decumbent-ascending, canescent-hirsute, densely stipitate-glandular.

Leaves

basal (persistent) and cauline;

basal blades sometimes 3-nerved, broadly oblanceolate to obovate or spatulate, 20–90(–120) × 5–25 mm, margins entire or denticulate, faces moderately hirsuto-villous, stipitate-glandular;

cauline blades smaller, narrower, relatively even-sized distally (bases subclasping).

basal (persistent) and cauline (petioles prominently ciliate, at least on proximal portions, hairs thick-based, spreading);

basal blades linear-oblanceolate to spatulate, 20–80 × 2–7 mm;

cauline gradually or abruptly reduced distally, sometimes bractlike (stems scapiform), margins entire, faces canescent-hirsute, densely stipitate-glandular (hairs finer).

Involucres

5–8 × 7–14 mm.

4–6 × 7–15 mm.

Ray florets

20–45;

corollas usually blue to purplish, sometimes white or pink, 5–12 mm, laminae coiling.

Ray (pistillate) florets

30–45;

corollas usually tubular, lacking laminae, or laminae shorter than involucres.

Disc corollas

3–4.3 mm.

2.8–4.5 mm (throats white-indurate and inflated, conspicuously puberulent).

Phyllaries

in 2–3 series, sparsely to moderately hirsuto-villous, stipitate-glandular.

in 2–3 series, coarsely hirsute, densely minutely glandular.

Heads

1(–5) (on branches from proximal axils).

(disciform) 1–4.

Cypselae

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

pappi: outer of setae, inner of 12–16 bristles.

1.5–1.8 mm, 2-nerved, faces sparsely strigose (carpopodia whitish);

pappi: outer of scales or setae, inner of 7–20 bristles.

Erigeron leibergii

Erigeron aphanactis

Phenology Flowering Jun–Aug(–Sep).
Habitat Cliffs, ledges, talus, and other rocky habitats, mixed conifers
Elevation 900–2500 m (3000–8200 ft)
Distribution
from FNA
WA; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; CA; CO; NM; NV; OR; UT
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

Erigeron aphanactis is distinguished from E. austiniae by its conspicuously puberulent (versus essentially glabrous) disc corollas and white (versus yellow) carpopodia; it also is similiar in habit and vestiture to E. concinnus, which has conspicuous white to pinkish rays.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Stems leafy; heads usually 2–3; disc corolla lobes usually yellowish
var. aphanactis
1. Stems scapiform; heads 1; disc corolla lobes sometimes becoming reddish or purplish
var. congestus
Source FNA vol. 20, p. 284. FNA vol. 20, p. 291.
Parent taxa Asteraceae > tribe Astereae > Erigeron 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. 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. abajoensis, E. acomanus, E. acris, E. aequifolius, E. algidus, E. aliceae, E. allocotus, E. alpiniformis, E. anchana, E. annuus, 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. 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
Subordinate taxa
E. aphanactis var. aphanactis, E. aphanactis var. congestus
Synonyms E. concinnus var. aphanactis
Name authority Piper: Bull. Torrey Bot. Club 28: 41. (1901) (A. Gray) Greene: Fl. Francisc., 389. (1897)
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