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rayless shaggy fleabane
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dwarf fleabane
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| Perennials, 2–20(–30) cm; taprooted, caudices branched. |
Perennials, 2–10 cm; taprooted, caudices with relatively short and thick branches. |
erect to slightly decumbent-ascending, canescent-hirsute, densely stipitate-glandular. |
erect, hispido-hirsutulous to hirsute (hairs spreading, stiff, usually of unequal lengths, relatively thick-based), minutely glandular. |
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). |
mostly basal (persistent) (petioles prominently ciliate, hairs thick-based, spreading); blades linear-oblanceolate, 20–40 × 1–2(–3) mm, margins entire, often coarsely spreading-ciliate, faces hispido-hirsute to hirsute or glabrous, abaxial sometimes glabrous, sometimes sparsely minutely glandular; cauline abruptly reduced, restricted to proximal 1/3 of stems. |
4–6 × 7–15 mm. |
5–8 × 7–13 mm. |
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15–35; corollas usually blue to purplish, rarely white, 5–10 mm, laminae coiling. |
30–45; corollas usually tubular, lacking laminae, or laminae shorter than involucres. |
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2.8–4.5 mm (throats white-indurate and inflated, conspicuously puberulent). |
3.9–5.5 mm. |
in 2–3 series, coarsely hirsute, densely minutely glandular. |
in 2–3(–4) series, densely villous proximally, hirsute to hirsuto-villous, minutely glandular. |
(disciform) 1–4. |
1. |
1.5–1.8 mm, 2-nerved, faces sparsely strigose (carpopodia whitish); pappi: outer of scales or setae, inner of 7–20 bristles. |
2.2–2.8 mm, 2-nerved, faces sparsely strigose to glabrate; pappi: outer of setae, bristles, or scales, inner of 15–23 bristles. |
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Flowering May–Jun. |
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Dry sites, ridges, rocky slopes, clay slopes, quartzite outcrops, sagebrush, pine-fir |
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1900–2700(–3200) m (6200–8900(–10500) ft) |
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AZ; CA; CO; NM; NV; OR; UT
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ID; NV; UT; WY |
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.) |
Erigeron nanus is unusually variable in leaf vestiture. The tendency (especially in Cassia County, Idaho) for sparsely strigose adaxial and glabrous abaxial leaf faces is similar to that of the E. radicatus group; longer disc corollas and the strong tendency for unequal-length stem hairs, plus spreading-ciliate petioles, place E. nanus closer to E. disparipilus and E. poliospermus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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 |
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| FNA vol. 20, p. 291. |
FNA vol. 20, p. 285. |
| Asteraceae > tribe Astereae > Erigeron |
Asteraceae > tribe Astereae > Erigeron |
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 |
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. 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 |
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| E. concinnus var. aphanactis |
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| (A. Gray) Greene: Fl. Francisc., 389. (1897) |
Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 308. (1840) |
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