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dwarf yellow fleabane
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dieter's erigeron, Wilken's fleabane
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| Perennials, 3–15 cm; taprooted, caudices branched. |
Perennials, 10–20 cm (occurring mostly singly); taprooted, caudices simple or branches relatively slender. |
erect (bracteate), evenly hispidulous to hirsute, usually minutely glandular. |
erect, sparsely strigillose (hairs white, stiff), eglandular. |
mostly basal (in tufts, persistent) (petioles prominently ciliate, hairs spreading, thick-based); blades linear to linear-oblanceolate, 40–70(–90) × 1–3 mm, cauline reduced to bracts (bases relatively thin, not sheathing), margins entire, coarsely ciliate, faces hispidulous to loosely strigose. |
mostly basal (persistent); (gray-green) blades narrowly oblanceolate to subspatulate, 9–62 × 1–5 mm, cauline linear-bractlike (bases enlarged, purplish-membranous), margins entire, faces sparsely and closely strigose, eglandular. |
(3.5–)4.5–7.5 × 9–17 mm. |
3.4–4.6 × 6–8.5 mm. |
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(8–)11–12; corollas adaxially white, abaxially light pink, 4.5–6 mm, laminae not coiling or reflexing. |
20–60; corollas tubular, lacking laminae, or laminae yellow (sometimes fading on drying and appearing whitish or creamy), 2–10 mm, not coiling or reflexing. |
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4–4.5 mm (throats tubular). |
2.2–3.5 mm. |
in 2–3 series, sparsely hispid, minutely glandular. |
in 2–3 series, sparsely hirsute, minutely glandular. |
1. |
1. |
2–2.5 mm, 2-nerved, faces sparsely strigose (carpopodia yellowish); pappi: outer of inconspicuous setae, inner of 15–25 bristles. |
ca. 1.8 mm, 2-nerved, faces sparsely strigose; pappi: outer apparently 0, inner of (12–)20–30 bristles. |
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Flowering May–Jun. |
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Sloping alluvium and colluvium at w-facing bases of sheer sandstone walls |
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1500–2300 m (4900–7500 ft) |
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CA; ID; NV; OR; WA
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CO |
Varieties 3 (3 in the flora). Intermediates between var. austiniae and var. chrysopsidis are formed in Oregon and Idaho, where their ranges overlap. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Erigeron wilkenii is known only from Pool Canyon in Dinosaur National Monument. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
1. Ray (pistillate) laminae absent or not surpassing involucres; involucres 4.5–6 mm; stems hirsuto-villous | var. austiniae |
1. Ray laminae well developed (surpassing involucres); involucres 3.5–7.5 mm; stems hirsuto-villous or strigose | → 2 |
2. Involucres 3.5–5.5 mm; ray corolla laminae 4–7 mm; stems strigose to hirsuto-villous | var. brevifolius |
2. Involucres 5–6.5(–7.5) mm; ray corolla laminae (6–)8–11 mm; stems hirsuto-villous | var. chrysopsidis |
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| FNA vol. 20, p. 287. |
FNA vol. 20, p. 304. |
| 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. 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. 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. 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. yukonensis |
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| Chrysopsis hirtella |
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| A. Gray: in A. Gray et al., Syn. Fl. N. Amer. 1(2): 210. (1884) |
O’Kane: Madroño 37: 184, fig. 1. (1990) |
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OR
WA
CalFlora
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
