Difference between revisions of "Erigeron hyperboreus"
Pittonia 2: 227. 1892.
FNA>Volume Importer |
imported>Volume Importer |
||
| (4 intermediate revisions by 2 users not shown) | |||
| Line 8: | Line 8: | ||
}} | }} | ||
|common_names=Tundra fleabane | |common_names=Tundra fleabane | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Erigeron alaskanus | |name=Erigeron alaskanus | ||
|authority=Cronquist | |authority=Cronquist | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Erigeron;Erigeron hyperboreus | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Erigeron;Erigeron hyperboreus | ||
| Line 36: | Line 41: | ||
-->{{#Taxon: | -->{{#Taxon: | ||
name=Erigeron hyperboreus | name=Erigeron hyperboreus | ||
| − | |||
|authority=Greene | |authority=Greene | ||
|rank=species | |rank=species | ||
| Line 50: | Line 54: | ||
|publication title=Pittonia | |publication title=Pittonia | ||
|publication year=1892 | |publication year=1892 | ||
| − | |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_733.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Erigeron | |genus=Erigeron | ||
Latest revision as of 20:05, 5 November 2020
Perennials, 3–15 cm; rhizomatous, fibrous-rooted, sometimes with branched, rhizomelike caudices. Stems erect to basally ascending, hirsute to hirsuto-villous (hair cross walls purplish black), minutely glandular (conspicuously so near heads). Leaves mostly basal (persistent) or basal and cauline; basal blades narrowly oblanceolate to narrowly oblanceolate-spatulate 10–50(–60) × 1.5–6 mm, cauline linear and reduced distally, margins entire (apices acute to obtuse), faces hirsute, eglandular. Heads 1. Involucres 5–8 × 9–15 mm. Phyllaries in 2(–3) series (usually dark purple), hirsute to villous (hair cross walls purplish black), minutely glandular. Ray florets 30–60; corollas white to blue, drying white or pink, purple, or blue, 7–15 mm (mostly 1–2 mm wide), laminae coiling. Disc corollas 3.5–5 mm. Cypselae 1.7–2 mm, 2-nerved, faces densely strigoso-hirsute; pappi: outer of setae (inconspicuous), inner of 15–20 bristles. 2n = 18.
Phenology: Flowering Jun–Aug.
Habitat: Ridges, rocky slopes, limestone scree, talus, serpentine fell fields, sandy tidal pools, grassy pockets in tundra, dryas heath, heath tundra
Elevation: (30–)100–900(–2400) m
Discussion
Some plants in each of two collections of Erigeron hyperboreus from Alaska (Parker 755, ALA; Murray 8514, ALA) have glabrous or glabrate leaves, stems, and phyllaries; other plants of the same populations are more typical and intermediacy is evident.
Selected References
None.