Difference between revisions of "Erigeron inornatus"
Notes Compositae, 88. 1880.
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Latest revision as of 18:21, 6 November 2020
Perennials, 20–70(–90) cm; taprooted, woody. Stems basally decumbent, abruptly erect, usually glabrous or glabrate, rarely sparsely strigose on proximal 1/2, or hirsutulous proximally and strigose distally, or distally densely hirsutulous (hairs usually ± deflexed, sometimes loosely antrorsely ascending; var. keilii), eglandular. Leaves cauline; blades narrowly oblong-oblanceolate to linear, 20–60 × 2–7 mm, seldom reduced distally, margins entire, faces glabrous, sparsely strigose, or hispid, eglandular. Heads (discoid) (1–)2–15 in corymbiform arrays. Involucres 4.5–6.5 × 7–12 mm. Phyllaries in 3–5 series (margins broad, stramineous, midveins orange, thin), glabrous, usually eglandular, rarely minutely glandular. Ray (pistillate) florets 0. Disc corollas 3.8–4.5 mm (throats slightly indurate, not inflated). Cypselae 2–3 mm, 2-nerved, faces glabrous; pappi: outer of setae, inner of 28–45 bristles.
Distribution
Calif., Nev., Oreg., Wash.
Discussion
Varieties 3 (3 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Distal stems densely hirsutulous (hairs slightly deflexed, sometimes densely ascending-strigose) | Erigeron inornatus var. keilii |
| 1 | Distal stems usually sparsely strigose or glabrous | > 2 |
| 2 | Stems 10–20 cm, decumbent-ascending, hirsutulous (hairs spreading-deflexed) in proximal 1/2; proximal and mid leaf margins with stiff, spreading cilia, faces hispid; involucres 5–6.5 mm | Erigeron inornatus var. calidipetris |
| 2 | Stems 30–70(–90) cm, basally ascending, distally erect, strigose in proximal 1/2; proximal and mid leaf margins eciliate, faces strigose; involucres 4.5–5.5 mm | Erigeron inornatus var. inornatus |