Difference between revisions of "Pyrrocoma liatriformis"
Leafl. Bot. Observ. Crit. 2: 17. 1909.
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|name=Haplopappus integrifolius subsp. liatriformis | |name=Haplopappus integrifolius subsp. liatriformis | ||
|authority=(Greene) H. M. Hall | |authority=(Greene) H. M. Hall | ||
| + | |rank=subspecies | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Haplopappus integrifolius subsp. scaberulus | |name=Haplopappus integrifolius subsp. scaberulus | ||
|authority=(Greene) H. M. Hall | |authority=(Greene) H. M. Hall | ||
| + | |rank=subspecies | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Haplopappus liatriformis | |name=Haplopappus liatriformis | ||
|authority=(Nuttall) Torrey | |authority=(Nuttall) Torrey | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Haplopappus racemosus subsp. liatriformis | |name=Haplopappus racemosus subsp. liatriformis | ||
|authority=(Greene) D. D. Keck | |authority=(Greene) D. D. Keck | ||
| + | |rank=subspecies | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Pyrrocoma;Pyrrocoma liatriformis | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Pyrrocoma;Pyrrocoma liatriformis | ||
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name=Pyrrocoma liatriformis | name=Pyrrocoma liatriformis | ||
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|authority=Greene | |authority=Greene | ||
|rank=species | |rank=species | ||
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|publication year=1909 | |publication year=1909 | ||
|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/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V20_967.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Pyrrocoma | |genus=Pyrrocoma | ||
Revision as of 19:32, 16 December 2019
Plants 25–70 cm. Stems 1–3, erect, sometimes curved-ascending, sparsely villous to tomentose, eglandular. Leaves: basal blades lanceolate to oblanceolate, 80–310 × 9–30 mm, margins entire or undulate, ciliate; cauline sessile, blades lanceolate, 30–120 × 5–20 mm; faces sparsely tomentose, eglandular. Heads 4–12 in open, racemiform arrays. Peduncles 0–3 cm. Involucres campanulate, 10–23 × 12–20 mm (in axils of leafy bract). Phyllaries in 4–5 series, green, lanceolate, 5–12 mm, unequal, margins entire, ciliate, apices acute, faces villous. Ray florets 17–25; corollas 6–14.5 mm. Disc florets 35–60; corollas 7–11 mm. Cypselae narrowly oblong, 4.5–6.5 mm, 4-angled, faces striate, villous; pappi tawny, 5.8–8 mm. 2n = 36.
Phenology: Flowering Jul–Aug.
Habitat: Prairies, roadsides
Elevation: 700–1100 m
Discussion
Of conservation concern.
Pyrrocoma liatriformis is one of the dominants of virgin Palouse prairies and appears to be threatened. It is recognized by its hirsute stems, leaves, and phyllaries, and the small, pedunculate heads.
Selected References
None.