Species Details

Listera cordata

heart-leaved twayblade

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Classification

Scientific Name: Listera cordata (L.) R. Br.
Common Name: heart-leaved twayblade
Family:	Orchidaceae
Element Code:	PMORC1N060
USDA Plants Symbol:	LICO6
Synonyms/Other Names: Listera cordata (L.) R. Br. var. nephrophylla (Rydb.) Hulten

Conservation Status

CA Rare Plant Rank:	4.2
Fed List:	None
State List:	None
Global Rank:	G5
State Rank:	S4
Other Status:
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-09-27

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Feb-Jul

Elevation:
5 - 1370 meters
15 - 4495 feet

General Habitats:

Bogs and fens
Lower montane coniferous forest
North Coast coniferous forest

Microhabitat Details:

Microhabitat:

Notes

Notes: Easily overlooked. Threatened by grazing, logging, and road maintenance. Includes L. cordata var. nephrophylla. See Fremontia 17(3):26-27 (1989) and The Wild Orchids of California, p. 95-98 (1995) by R. Coleman for species accounts.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
Alaska (AK), California (CA), Colorado (CO), Connecticut (CT), Idaho (ID), Maine (ME), Maryland (MD), Massachusetts (MA), Michigan (MI), Minnesota (MN), Montana (MT), Nevada (NV), New Hampshire (NH), New Jersey (NJ), New Mexico (NM), New York (NY), North Carolina (NC), Ohio (OH), Oregon (OR), Pennsylvania (PA), Rhode Island (RI), Utah (UT), Vermont (VT), Virginia (VA), Washington (WA), West Virginia (WV), Wisconsin (WI), Wyoming (WY)

California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Mendocino (MEN), Trinity (TRI)

Quads: Name (Quad Code)
Ah Pah Ridge (4112348), Arcata North (4012481), Arcata South (4012471), Bald Hills (4112328), Blake Mountain (4012355), Blocksburg (4012336), Blue Creek Mtn. (4112347), Blue Lake (4012388), Board Camp Mtn. (4012366), Briceland (4012318), Bridgeville (4012347), Broken Rib Mtn. (4112386), Bull Creek (4012431), Cant Hook Mtn. (4112368), Childs Hill (4112461), Crannell (4112411), Crescent City (4112472), Dinsmore (4012345), Dutchmans Knoll (3912356), Fern Canyon (4112441), Fields Landing (4012462), Fort Seward (4012326), Fortuna (4012452), French Camp Ridge (4112327), Garberville (4012317), Grouse Mtn. (4012376), Hales Grove (3912377), High Divide (4112481), Hiouchi (4112471), Holter Ridge (4112338), Hupa Mountain (4112317), Hyampom (4012354), Hydesville (4012451), Iaqua Buttes (4012368), Johnsons (4112337), Korbel (4012378), Larabee Valley (4012346), Lincoln Ridge (3912366), Lord-ellis Summit (4012387), Mad River Buttes (4012367), Maple Creek (4012377), McWhinney Creek (4012461), Mendocino (3912337), Miranda (4012327), Myers Flat (4012337), Northspur (3912345), Orick (4112431), Owl Creek (4012358), Panther Creek (4112318), Redcrest (4012348), Requa (4112451), Rodgers Peak (4112421), Scotia (4012441), Sister Rocks (4112462), Smith River (4112482), Taylor Peak (4012442), Trinidad (4112412), Weitchpec (4112326), Weott (4012338), Westport (3912367), Willow Creek (4012386)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory