Difference between revisions of "Hymenopappus flavescens"
Mem. Amer. Acad. Arts, n. s. 4: 97. 1849.
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| − | |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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V21_778.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Hymenopappinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Hymenopappinae | ||
Revision as of 18:50, 24 September 2019
Biennials, 30–90 cm. Leaves: basal 2-pinnate, 6–15 cm, lobes 3–15(–20+) × 1–6 mm; cauline 10–50. Heads 15–100 per stem. Pedun-cles 1–6 cm. Phyllaries yellowish, 4–8 × 2–4 mm. Ray florets 0. Disc florets 20–40; corollas yellow, 2.5–3.5 mm, tubes 1.5–2 mm, throats campanulate, 0.8–1.5 mm, lengths 1–1.5 times lobes. Cypselae 3–4.5 mm, ± villous; pappi of 16–22 scales 0.5–1.5 mm.
Distribution
c United States, n Mexico.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Lobes of basal leaves (1–)2–6 mm wide, abaxial faces glabrous or less hairy than adaxial; pappi 0.5–1(–1.5) mm | Hymenopappus flavescens var. flavescens |
| 1 | Lobes of basal leaves 1–2 mm wide, abaxial and adaxial faces ± equally hairy; pappi 1–1.5 mm | Hymenopappus flavescens var. canotomentosus |