Status: record juglans_hindsii - Wed, Jun. 19, 2013 00:42 ET c

Juglans hindsii
common name	Northern California black walnut	CalPhotos image Brother Alfred Brousseau © Saint Mary's College of California  Follow image link for photo data.
family	Juglandaceae
life form	deciduous tree
CNPS List	List 1B.1 CA-Endemic LIST 1B: Rare, threatened, or endangered in California and elsewhere.      0.1: Seriously endangered in California
state rank	S1      ranking system key
global rank	G1     G1: Less than 6 occurrences OR less than 1,000 individuals OR less than 2,000 acres.
	Where did the "RED" code go? Where did the "RED" code go? We've simplified our rating system. Read about it here. Under the old system, this plant was "3-3-3" (v6.05d, 9/05). Rarity 3: One to several highly restricted occurrences, or present in such small numbers that it is seldom reported. Endangerment 3: Seriously endangered in California. Distribution 3: Endemic to California.
CA state listing	None
federal listing	None

where found	(12/2) v7 maps currently unavailable - use link below for v8 details and maps Topographic quads (9): Las Trampas Ridge (465D) 3712271, Isleton (480A)* 3812125, Rio Vista (480B)* 3812126, Florin (496B) 3812144, Clarksburg (497A) 3812145, Courtland (497D) 3812135, Capell Valley (499B) 3812242, Napa (500D)* 3812233, Jericho Valley (532C)? 3812274 quad data info Quad numbers in parentheses are from the CA Department of Water Resources. The 7-digit numbers are the USGS equivalent. Red marks signify uncertainty[?] or extirpation[*]. See quad list above. A complete key is on the Index by Topo Quad page. Marks are smaller than the quads they represent, and are generally positioned near the center of the quad. In some coastal quads, this will place the mark offshore. Quad boundaries do not coincide with county lines. To confirm county location, refer to the county list below. Counties, states, regions: Contra Costa (CCA), Lake (LAK)?, Napa (NAP), Sacramento (SAC)*, Solano (SOL)*, Yolo (YOL)* counties map Quad Mark Identifier CNDDB Quick Viewer Web application for exploring the CNDDB elements reported at the quad level. (broadband recommended) A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats	•Riparian forest (RpFrs) •Riparian woodland (RpWld)
blooming period	Apr-May
elevation range	0 - 440 meters
notes	Only one confirmed, native occurrence appears viable as of 2003. Sizes and sites of trees in occurrences on quad 532C indicate they are historical; however further study is needed to determine native status. Reported as possibly present in BUT Co. (575C), but native status questionable. Widely naturalized in cismontane CA. Threatened by hybridization with orchard trees, urbanization, and conversion to agriculture. Formerly cultivated as rootstock for J. regia, with which it hybridizes readily. A synonym of J. californica var. hindsii in TJM (1993). See Flora of California 1(2):365 (1909) by W.L. Jepson for original description, and Madroño 17(1):1-32 (1963) for discussion of origin.
full name	Juglans hindsii (Jeps.) Jeps.
	INVENTORY VERSION 8 - Details for this taxon, including GIS and other links
	Additional information:
	standard acronym   Element Code  PDJUG02040
Jepson Online	Jepson Manual and other resources
Google search	CNPS website    entire web

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Suggested citation: California Native Plant Society (CNPS). 2013. Inventory of Rare and Endangered Plants (online edition, v7-13jun). California Native Plant Society. Sacramento, CA. Accessed on Wed, Jun. 19, 2013 from http://www.cnps.org/inventory