Asteraceae

Rio Grande pearlhead

Isocarpha oppositifolia (L.) Cass.

Family: Asteraceae
Genus: Isocarpha

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Common names

By language (1)

English: Rio Grande pearlhead

Synonyms

Dunantia achyranthes DC.
Isocarpha angustata Griseb.
Isocarpha atriplicifolia subsp. glabrata (S.F.Blake) Borhidi
Isocarpha glabrata S.F.Blake
Isocarpha oppositifolia subsp. achyranthes (DC.) Borhidi
Isocarpha oppositifolia subsp. oppositifolia
Isocarpha oppositifolia var. achyranthes (DC.) D.J.Keil & Stuessy
Isocarpha oppositifolia var. glabrata (S.F.Blake) Borhidi
Isocarpha tricephala Cass.
Santolina oppositifolia L.

Characteristics

Growth habit: Forb/herb
Lifespan: Annual
In the US and Canada: Lower 48 states: introduced

Photos

Photo: Wikimedia Commons contributor, CC BY 4.0, from Wikimedia Commons

More in Isocarpha

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.