Difference between revisions of "Sericocarpus oregonensis"
Trans. Amer. Philos. Soc., n. s. 7: 302. 1840.
Common names: Oregon white-topped aster
Endemic
Synonyms: Aster oregonensis (Nuttall) Cronquist
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| − | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>24–102 cm. <b>Stems</b> erect, hairy. <b>Leaves</b> basal and proximal-most cauline withering by flowering; cauline sessile; blades broadly lanceolate to narrowly ovate, 10–100 × 3–20 mm, margins entire, apices acuminate to acute, faces hairy. <b>Heads</b> 2–4 per branch, in corymbiform arrays. <b>Peduncle</b> bracts broadly lanceolate to narrowly ovate, hairy. <b>Involucres</b> 5–7 mm at flowering. <b>Phyllaries</b> in 3–4 series, puberulent, outer series 3–5 mm, mid series 4–6 mm. <b>Ray</b> florets 2–6; | + | --><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>24–102 cm. <b>Stems</b> erect, hairy. <b>Leaves</b> basal and proximal-most cauline withering by flowering; cauline sessile; blades broadly lanceolate to narrowly ovate, 10–100 × 3–20 mm, margins entire, apices acuminate to acute, faces hairy. <b>Heads</b> 2–4 per branch, in corymbiform arrays. <b>Peduncle</b> bracts broadly lanceolate to narrowly ovate, hairy. <b>Involucres</b> 5–7 mm at flowering. <b>Phyllaries</b> in 3–4 series, puberulent, outer series 3–5 mm, mid series 4–6 mm. <b>Ray</b> florets 2–6; laminae 3–6 mm, corolla tubes 3–4 mm. <b>Disc</b> florets 9–20; corolla tubes 3–5 mm, lobes 1–2 mm. <b>Ovaries</b> fusiform, 1–3 mm, strigose; pappi: inner series 5–7 mm.</span><!-- |
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Latest revision as of 16:15, 21 July 2021
Plants 24–102 cm. Stems erect, hairy. Leaves basal and proximal-most cauline withering by flowering; cauline sessile; blades broadly lanceolate to narrowly ovate, 10–100 × 3–20 mm, margins entire, apices acuminate to acute, faces hairy. Heads 2–4 per branch, in corymbiform arrays. Peduncle bracts broadly lanceolate to narrowly ovate, hairy. Involucres 5–7 mm at flowering. Phyllaries in 3–4 series, puberulent, outer series 3–5 mm, mid series 4–6 mm. Ray florets 2–6; laminae 3–6 mm, corolla tubes 3–4 mm. Disc florets 9–20; corolla tubes 3–5 mm, lobes 1–2 mm. Ovaries fusiform, 1–3 mm, strigose; pappi: inner series 5–7 mm.
Distribution
Calif., Oreg., Wash.
Discussion
Subspecies 2 (2 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Stems and leaves sparsely hairy | Sericocarpus oregonensis subsp. oregonensis |
| 1 | Stems and leaves moderately to densely hairy | Sericocarpus oregonensis subsp. californicus |