Taxon Report

Leptosiphon rattanii (A. Gray) J.M. Porter & L.A. Johnson

Rattan's leptosiphon

Print Report

© Bob Patterson and CNPS

Classification


Scientific Name:	Leptosiphon rattanii (A. Gray) J.M. Porter & L.A. Johnson
Common Name:	Rattan's leptosiphon
Family:	Polemoniaceae
Element Code:	PDPLM09110
USDA Plants Symbol:	LERA15
Synonyms/Other Names:	Linanthus rattanii (Gray) Greene

Ecology and Life History


Lifeform:	annual herb
Blooming Period: May-Jul	May-Jul
Elevation:	1700-2000 (5580-6560)
General Habitats:	Cismontane woodland, Lower montane coniferous forest
Microhabitat:	Gravelly (sometimes), Rocky (sometimes)
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G4
State Rank:	S4
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: True
California Counties and Islands: Name (Code)
Colusa (COL), Glenn (GLE), Lake (LAK), Mendocino (MEN), Shasta (SHA), Siskiyou (SIS), Tehama (TEH), Trinity (TRI)
Quads: Name (Quad Code)
Brushy Mtn. (3912352), Buck Rock (3912288), Burney (4012186), Crockett Peak (3912247), Forest Glen (4012333), Fouts Springs (3912236), Hull Mountain (3912258), Jamison Ridge (3912362), Kneecap Ridge (3912257), Lake Pillsbury (3912248), Log Spring (3912277), Longvale (3912354), Mendocino Pass (3912278), Newhouse Ridge (3912371), Noble Butte (3912386), North Yolla Bolly (4012228), Panther Rock (4112272), Plaskett Meadows (3912267), Plaskett Ridge (3912268), Potato Hill (3912237), Sanhedrin Mtn. (3912351), St. John Mtn. (3912246), Swim Ridge (4012322), Yorkville (3812382)

Threat List Data from the CNDDB


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

Notes



A synonym of Linanthus rattanii in The Jepson Manual. See Syn. Fl. N. Amer. (ed. 2) 2: 407 (1886) for original description, and Aliso 19(1):55-91 (2000) for revised nomenclature.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 5 January 2025].