Flora of North America species comparison

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Porophyllum ruderale

Porophyllum pygmaeum

Bolivian coriander, yerba porosa

dwarf poreleaf
Habit Perennials, 5–15 cm; internodes mostly 1–5(–12) mm.
Leaf

blades mostly filiform, 8–15 × 1–2 mm.
Florets

mostly 25–75+;

corollas yellow, 7–9 mm.
Phyllaries

5(–8), ovate to oblong or linear, 8–11 mm.
Cypselae

7–8 mm;

pappi: longer bristles 6–7 mm.
2n

= 24.

Porophyllum ruderale

Porophyllum pygmaeum
Phenology Flowering spring–summer.
Habitat Sandy soils, with desert scrub
Elevation 1300–2100 m (4300–6900 ft)
Distribution
from FNA
AZ; NM; TX; Mexico; Central America; South America; West Indies
[WildflowerSearch map]
[BONAP county map]
from FNA
NV
[BONAP county map]
Discussion

Varieties 2 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 234. FNA vol. 21, p. 234.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Pectidinae > Porophyllum Asteraceae > tribe Heliantheae > subtribe Pectidinae > Porophyllum
Sibling taxa
P. gracile, P. greggii, P. pygmaeum, P. scoparium
P. gracile, P. greggii, P. ruderale, P. scoparium
Subordinate taxa
P. ruderale var. macrocephalum
Synonyms Kleinia ruderale
Name authority (Jacquin) Cassini: in F. Cuvier, Dict. Sci. Nat. ed. 2, 43: 56. (1826) D. J. Keil & Morefield: Syst. Bot. 14: 583. (1989)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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