Cucurbitaceae

Taw manroot

Marah watsonii (Cogn.) Greene

Family: Cucurbitaceae
Genus: Marah

Pet and kid safety: not checked yet. Check pet-safe plants

Taw manroot (Marah watsonii) — FlowerPhoto: velodrome, CC BY 4.0, from iNaturalist

Is yours looking unwell? Scan your plant — free

Common names

By language (1)

English: Taw manroot

Synonyms

Echinocystis marah Cogn.
Echinocystis muricata Kellogg
Echinocystis watsonii Cogn.
Megarrhiza marah S.Watson
Megarrhiza muricata (Kellogg) S.Watson
Micrampelis marah (S.Watson) Greene
Micrampelis muricata Greene
Micrampelis watsonii Greene

Flowers

In flower: February to March (from 26 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Forb/herb, Vine
Lifespan: Perennial
In the US and Canada: Lower 48 states: native

Photos

FlowerPhoto: velodrome, CC BY 4.0, from iNaturalist
FlowerPhoto: Dee Shea Himes, CC BY 4.0, from iNaturalist
Photo: Deb Kemp, CC BY 4.0, from iNaturalist
Photo: Konshau Duman, CC BY 4.0, from iNaturalist
Photo: Mary K. Hanson, CC BY 4.0, from iNaturalist
Photo: Michael Warner, CC BY 4.0, from iNaturalist
Photo: Matt Berger, CC BY 4.0, from iNaturalist
Photo: Kyle Elshoff, CC BY 4.0, from iNaturalist
Photo: Colin J Pryor, CC BY 4.0, from iNaturalist
Photo: Leah Gardner, CC0, from iNaturalist
Photo: graham_coop, CC BY 4.0, from iNaturalist
Photo: Mary K. Hanson, CC BY 4.0, from iNaturalist

More in Marah

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.