CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18jan 1-22-18
Status: record polygonum_hickmanii - Wed, Jan. 24, 2018 06:10 ET c
Polygonum hickmanii
common nameScotts Valley polygonum
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life formannual herb
CA Rare Plant Rank
List 1B.1
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?
CA state listingEndangered  10/04
federal listingEndangered  04/08/03
where found
MAPS - Use v8 link below.

Topographic quads (2):
Laurel (407C) 3712118, Felton (408D) 3712211
quad data info

Counties, states, regions:
Santa Cruz (SCR)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Valley and foothill grassland (VFGrs)(mudstone and sandstone)
blooming period May-Aug  
elevation range210 - 250 meters
Known only from Scotts Valley. Fewer than 3500 individuals as of 1998. Threatened by development and non-native plants. Not in TJM (1993). See Novon 5(4):336 (1995) for original description.
full namePolygonum hickmanii H.R. Hinds & R. Morgan
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym   Element Code  PDPGN0L310
Jepson Online Jepson Interchange  Jepson Manual and other resources
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Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18jan). California Native Plant Society. Sacramento, CA. Accessed on Wed, Jan. 24, 2018 from

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