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slender fleabane, slender-leaf fleabane
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scepter-bearing fleabane
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| Biennials or short-lived perennials, 10–45 cm; fibrous-rooted, caudices simple. |
Annuals, 3–8 cm; taprooted. |
ascending (usually reddish proximally, branched distally), strigose, rarely hirsute proximally, eglandular. |
(single or multiple) ascending from bases, moderately hirsuto-hirtellous (hairs spreading-ascending, mostly on ribs, bases thickened), minutely glandular. |
basal (commonly persistent) and cauline; basal blades oblanceolate to obovate or spatulate, 20–100(–130) × 4–20 mm, margins serrate or crenate to pinnately lobed, faces sparsely hirsute to strigoso-hirsute (hairs ascending), eglandular; cauline becoming narrower and entire (bases not clasping or subclasping), abruptly reduced near midstem. |
mostly cauline; blades linear to linear-oblanceolate, 10–30 × 0.5–1.5 mm (proximal rarely 4 mm wide), margins entire or proximalmost with 1–2 pairs of teeth, faces loosely ascending-strigose, minutely glandular. |
(2–)2.5–4 × 5–10 mm. |
3–3.5 × 4–6 mm. |
60–120; corollas blue to pale lavender or white, drying blue to purplish, 3–5 mm, laminae not coiling or reflexing. |
(60–)85–130(–195); corollas white, drying purple, less often pink to bluish, 3.8–5 mm, laminae downward curving-reflexing. |
2–2.7 mm. |
1.8–2.3 mm (throats indurate and inflated). |
in 2–4 series, sparsely strigose, eglandular. |
in 3–4 series, sparsely hirsuto-strigose, minutely glandular. |
(1–)3–20(–60) in loosely corymbiform arrays (usually from branches beyond midstem). |
20–50+ in loosely corymbiform arrays (buds erect). |
1–1.2 mm, 2(–4)-nerved, faces sparsely strigose; pappi: outer of setae, inner of 11–15 bristles. |
0.6–0.7 mm, 2-nerved (nerves orange), faces sparsely strigose; pappi: outer 0 or scales or setae, inner of 9–14 bristles. |
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| Flowering mid Mar–May(–Jun, –Nov). |
Flowering Jul–Oct. |
| Open oak, oak-pine, or pine woodlands, roadsides, fencerows, pastures, bottomland, sand or sandy clay, less common in clay |
Grasslands with scattered juniper, oak, or oak-pine |
| 10–200 m (0–700 ft) |
1300–2100 m (4300–6900 ft) |
|
AL; AR; FL; KS; LA; MO; MS; OK; TX
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AZ; Mexico (Chihuahua, Sonora) |
A plant reported as Erigeron tenuis disjunct in North Carolina is perhaps better identified as E. strigosus: pappus bristles on the ray cypselae are reduced and variable in number. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Erigeron sceptrifer is similar in habit to E. divergens; it has stem hairs only along the ribs, erect (versus nodding) buds, pappi of more bristles, without a conspicuous outer series, reflexing ray laminae, and orange cypselar nerves. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
| FNA vol. 20, p. 347. |
FNA vol. 20, p. 337. |
| 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. 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. 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. 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 |
| Torrey & A. Gray: Fl. N. Amer. 2: 175. (1841) |
G. L. Nesom: Phytologia 69: 248. (1990) |
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