Difference between revisions of "Hemizonia congesta"
in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 692. 1836.
IllustratedEndemic
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Latest revision as of 18:33, 6 November 2020
Leaf blades 50–175+ × 2–8(–12+) mm. Involucres hemispheric to ± urceolate or globose, 3.5–12 × 3–8+ mm. Ray laminae 5–12 mm. Disc corollas 2.5–3.5 mm. Cypselae black, 2–3.5 mm.
Distribution
Calif., Oreg.
Discussion
Subspecies 6 (6 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Heads in spiciform-racemiform to spiciform-paniculiform arrays (heads ± sessile); ray laminae white, abaxially purple-veined | > 2 |
| 1 | Heads in racemiform or paniculiform arrays or in glomerules; ray laminae white or yellow, abaxially purple-veined or not | > 3 |
| 2 | Peduncular bracts not or barely surpassing phyllaries; calyculi 0; phyllaries 3–7 mm, apices usually shorter than bodies; cypsela widths 0.6–0.75 times lengths | Hemizonia congesta subsp. clevelandii |
| 2 | Peduncular bracts (and calyculi) often notably surpassing phyllaries; calyculi usually of 5–7, sometimes 0, bractlets; phyllaries 6–12 mm, apices usually longer than bodies; cypsela widths 0.5–0.6 times lengths | Hemizonia congesta subsp. calyculata |
| 3 | Leaves usually puberulent and eglandular throughout, rarely the distal villous and glandular; heads in paniculiform arrays; ray laminae white, not purple-veined | Hemizonia congesta subsp. tracyi |
| 3 | Leaves pubescent, sericeous, or villous, all or the distal glandular; heads in paniculiform arrays or in glomerules; ray laminae white or yellow, abaxially purple-veined | > 4 |
| 4 | Leaves ± villous (the distal with hairs at margins often longer); some or all heads usually in glomerules, sometimes in corymbiform or paniculiform arrays; phyllaries 6–10 mm, apices usually longer than bodies; ray laminae white | Hemizonia congesta subsp. congesta |
| 4 | Leaves pubescent, villous, or sericeous (the distal with hairs at margins not notably longer); heads in paniculiform arrays; phyllaries 3–7(–8) mm, apices usually shorter than bodies; ray laminae white or yellow | > 5 |
| 5 | Ray laminae white | Hemizonia congesta subsp. luzulifolia |
| 5 | Ray laminae yellow | Hemizonia congesta subsp. lutescens |