Difference between revisions of "Erigeron tweedyi"
Bot. Gaz. 13: 17. 1888.
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|common_names=Tweedy’s fleabane | |common_names=Tweedy’s fleabane | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
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name=Erigeron tweedyi | name=Erigeron tweedyi | ||
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|authority=Canby | |authority=Canby | ||
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|publication title=Bot. Gaz. | |publication title=Bot. Gaz. | ||
|publication year=1888 | |publication year=1888 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_654.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Erigeron | |genus=Erigeron | ||
Latest revision as of 20:04, 5 November 2020
Perennials, 4–20 cm; taprooted, caudices multicipital crowns or branches relatively short and thick. Stems erect to ascending or decumbent-prostrate, densely strigose (hairs relatively thin), eglandular. Leaves basal (persistent) and cauline; basal (silvery) blades spatulate, broadly elliptic, 50–250 × 5–13 mm, cauline abruptly reduced distally, margins entire, faces densely strigoso-sericeous (hairs gray-white), eglandular. Heads 1–4. Involucres 4–6 × 9–14 mm. Phyllaries in 3–4 series, finely hirsuto-strigose, sparsely minutely glandular. Ray florets 20–50; corollas blue to purple, sometimes white, 5–9 mm, laminae not coiling or reflexing. Disc corollas 3.1–4.3 mm. Cypselae 2–2.5 mm, 2-nerved, faces strigoso-sericeous; pappi: outer of setae, inner of 20–30 bristles.
Phenology: Flowering Jun–Aug.
Habitat: Clay hills, rocky slopes, limestone taluses, shale outcrops, sagebrush-grasslands
Elevation: (1300–)1600–3000 m
Distribution
Idaho, Mont., Wyo.
Discussion
Selected References
None.