Difference between revisions of "Erigeron concinnus"
Fl. N. Amer. 2: 174. 1841.
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|common_names=Navajo fleabane | |common_names=Navajo fleabane | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Distasis concinna | |name=Distasis concinna | ||
|authority=Hooker & Arnott | |authority=Hooker & Arnott | ||
| + | |publication_title=Bot. Beechey Voy., | ||
| + | |publication_place=350. 1839 | ||
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|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_604.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Erigeron | |genus=Erigeron | ||
Revision as of 19:43, 24 September 2019
Perennials, 4–25(–50) cm; taprooted, caudices simple or branched, branches sometimes rhizomelike. Stems ascending to erect, sparsely to densely hispido-pilose to glabrate, minutely glandular. Leaves mostly basal (usually persistent) or basal and cauline (petioles prominently ciliate, hairs spreading, thick-based); blades narrowly oblanceolate to linear-oblong, 10–50(–80) × 1–4 mm, margins entire, usually ciliate, faces usually hirsute to hirsuto-villous, sometimes substrigose to glabrate, eglandular; cauline unreduced or gradually reduced distally. Heads 1–5. Involucres 4–7 × 7–12(–15) mm. Phyllaries in 2–4 series (midvein region orange or yellowish), hirsute to hirsuto-villous, ± minutely glandular. Ray florets 50–100(–125); corollas white to pink or blue, 6–15 mm, laminae reflexing. Disc corollas 3–5 mm (throats indurate and inflated, hirsuto-strigose, hairs biseriate, sharply pointed). Cypselae 1.2–1.8 mm, 2-nerved, faces sparsely strigoso-hirsute; pappi: outer of scales (0.2–0.5 mm), inner of (7–)10–14(–15) bristles.
Distribution
w United States.
Discussion
Varieties 3 (3 in the flora).
Erigeron concinnus has been treated within E. pumilus; G. L. Nesom (1983b) found that these species approach each other closely in geographic range without intergradation.
Selected References
Lower Taxa
Key
| 1 | Heads 1; stems ± scapiform | Erigeron concinnus var. condensatus |
| 1 | Heads (1–)2–3(–5, rarely –50); stems leafy (at least proximal 1/2) | > 2 |
| 2 | Stems densely piloso-hispid | Erigeron concinnus var. concinnus |
| 2 | Stems glabrous or sparsely hirsute or piloso-hirsute (hairs sometimes ascending-appressed near heads) | Erigeron concinnus var. subglaber |