Scrophulariaceae

Carpenter's square

Scrophularia marilandica L.

Family: Scrophulariaceae
Genus: Scrophularia

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Carpenter's square (Scrophularia marilandica) — FlowerPhoto: June Mire, CC0, from iNaturalist

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Common names

By language (2)

Chinese: 北美玄参
English: Carpenter's square, Eastern figwort, Late figwort, Maryland figwort

Synonyms

Scrophularia adenopa Raf.
Scrophularia diversifolia Raf.
Scrophularia marilandica var. viridis Farw.
Scrophularia neglecta Rydb.
Scrophularia nodosa var. americana Michx.
Scrophularia nodosa var. marilandica (L.) A.Gray
Scrophularia serrulata Raf.

Flowers

In flower: July to August (from 256 flowering iNaturalist observations worldwide)

Characteristics

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

Photos

FlowerPhoto: June Mire, CC0, from iNaturalist
FlowerPhoto: Daniel McNair, CC BY 4.0, from iNaturalist
FlowerPhoto: Zach Bell, CC0, from iNaturalist
FlowerPhoto: Andrew St. Paul, CC BY 4.0, from iNaturalist
FruitPhoto: Michael J. Papay, CC BY 4.0, from iNaturalist
FruitPhoto: Chris Hoess, CC BY-SA 4.0, from iNaturalist
Photo: Fritzflohrreynolds, CC BY-SA 3.0, from Wikimedia Commons
Photo: Reid Hardin, CC BY 4.0, from iNaturalist
Photo: Patrick Alexander from Las Cruces, NM, CC0, from Wikimedia Commons
Photo: Patrick Alexander from Las Cruces, NM, CC0, from Wikimedia Commons
Photo: Alex Zorach, CC BY 4.0, from iNaturalist
Photo: Ryan Sorrells, CC BY 4.0, from Wikimedia Commons

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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.