CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-14nov 11-15-14
Status: record hemizonia_congesta_ssp._congesta - Fri, Nov. 28, 2014 05:50 ET c
Hemizonia congesta ssp. congesta
common namewhite seaside tarplant
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familyAsteraceae
life formannual herb
CA Rare Plant Rank
List 1B.2
CA-Endemic
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S2S3   S2S3: Intermediate between S2 and S3
global rank
G5T2T3      ranking system key
CA state listingNone  
federal listingNone  
where found
(12/2) v7 maps currently unavailable - use link below for v8 details and maps

Topographic quads (25):
San Francisco South (448B) 3712264, San Francisco North (466C) 3712274, San Rafael (467A) 3712285, Bolinas (467B) 3712286, Sears Point (483B) 3812224, Petaluma (484B) 3812226, San Geronimo (484C) 3812216, Novato (484D) 3812215, Point Reyes NE (485A) 3812227, Tomales (485B) 3812228, Inverness (485D) 3812217, Sonoma (500C) 3812234, Santa Rosa (501B) 3812246, Cotati (501C) 3812236, Sebastopol (502A) 3812247, Valley Ford (502C) 3812238, Two Rock (502D) 3812237, Duncans Mills (503A) 3812341, Arched Rock (503B) 3812342, Jimtown (518A) 3812267, Healdsburg (518D) 3812257, Warm Springs Dam (519A) 3812361, Willits (567A) 3912343, Laughlin Range (567D) 3912333, Noyo Hill (568B) 3912346
quad data info

Counties, states, regions:
Mendocino (MEN), Marin (MRN), San Francisco (SFO), San Mateo (SMT), Sonoma (SON)
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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)/sometimes roadsides
blooming period Apr-Nov  
elevation range20 - 560 meters
notes
Threatened by agriculture, development, and road construction. Possibly threatened by grazing. Hybridizes with H. congesta ssp. lutescens. See H. congesta ssp. leucocephala in The Jepson Manual (1993). What was once considered H. congesta ssp. congesta in The Jepson Manual (1993) is now considered H. congesta ssp. lutescens; a common taxon.
full nameHemizonia congesta DC. ssp. congesta
Version 8    INVENTORY VERSION 8 - Details for this taxon, including GIS and other links

Additional information:
standard acronym  HECOC2 Element Code  PDAST4R065
CalFlora
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
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Suggested citation: California Native Plant Society (CNPS). 2014. Inventory of Rare and Endangered Plants (online edition, v7-14nov). California Native Plant Society. Sacramento, CA. Accessed on Fri, Nov. 28, 2014 from http://www.cnps.org/inventory

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