Plants Profile for Triadenum walteri (greater marsh St. Johnswort)

General Information
Symbol:	TRWA
Group:	Dicot
Family:	Clusiaceae
Duration:	Perennial
Growth Habit:	Forb/herb
Native Status:	L48 N
Data Source and Documentation

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	Native		Introduced		Both		Absent/Unreported
	Native, No County Data		Introduced, No County Data		Both, No County Data

Native Status:

L48

NAV

CAN

SPM

Images

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Robert H. Mohlenbrock. USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements.

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 2: 537. Provided by Kentucky Native Plant Society. Scanned by Omnitek Inc. Usage Requirements.

Synonyms

Symbol	Scientific Name
HYPE6	Hypericum petiolatum Walter, non L.
HYTUW	Hypericum tubulosum Walter var. walteri (J.G. Gmel.) Lott
HYWA	Hypericum walteri J.G. Gmel.
TRPE12	Triadenum petiolatum (Walter) Britton
TRTUW	Triadenum tubulosum (Walter) Gleason var. walteri (J.G. Gmel.) Cooperr.

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.

Rank	Scientific Name and Common Name
Kingdom	Plantae – Plants
Subkingdom	Tracheobionta – Vascular plants
Superdivision	Spermatophyta – Seed plants
Division	Magnoliophyta – Flowering plants
Class	Magnoliopsida – Dicotyledons
Subclass	Dilleniidae
Order	Theales
Family	Clusiaceae ⁄ Guttiferae – Mangosteen family
Genus	Triadenum Raf. – marsh St. Johnswort
Species	Triadenum walteri (J.G. Gmel.) Gleason – greater marsh St. Johnswort

Subordinate Taxa

This plant has no children

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
New Jersey Walter's St. John's-wort Endangered
Ohio Walter's St. John's-wort Endangered

Wetland Status

Interpreting Wetland Status

Synonyms

HYWA Hypericum walteri J.G. Gmel.

North America
Atlantic and Gulf Coastal Plain	OBL
Eastern Mountains and Piedmont	OBL
Great Plains	OBL
Midwest	OBL
Northcentral & Northeast	OBL