Jepson eFlora
Key to families | Table of families and genera

Key to Pentachaeta

View taxon page for Pentachaeta

1. Well developed ray flowers 0; ray of pistillate flowers 0 or pistillate flowers 0

2. Disk flowers generally 4; corolla 3-lobed ..... P. alsinoides

2' Disk flowers 6–34; corolla 5-lobed ..... P. exilis subsp. exilis

1' Well developed ray flowers generally present, ray evident

3. Ray flowers white, ray sometimes ± red abaxially; pappus bristles present or 0

4. Ray flowers 7–16; peduncle glabrous to short-hairy ..... P. bellidiflora

4' Ray flowers (0)1–3; peduncle soft-shaggy-hairy ..... P. exilis subsp. aeolica

3' Ray flowers generally yellow or proximally yellow, distally white, sometimes ± brown-orange; pappus bristles present

5. Ray flowers 7–12, disk flowers 10–23; largest leaves < 2.5 cm ..... P. fragilis

5' Ray flowers 14–52, disk flowers 30–91; largest leaves 2.5–5.5 cm

6. Phyllaries lanceolate, soft-shaggy-hairy; pappus bristles 8–12 ..... P. lyonii

6' Phyllaries narrowly to widely-elliptic, glabrous or sparsely short-hairy; pappus bristles 5–8 ..... P. aurea

7. Ray proximally yellow, distally white ..... subsp. allenii

7' Ray yellow to orange ..... subsp. aurea

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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