SUNFLOWER FAMILY 255 
1. Grindelia humilis are - Arn. Marsh Grindelia. Fig. 5417. 
Grindelia humilis Hook & Arn. Bot. Beechey 1 
Grindelia robusta var. eg lia A. sgl Bot ies 304. 1876. 
Grindelia cunetfolia of most authors, no’ 
Frutescent, to 1 gis . high, stout, #6. woody stems giving rise to herbaceous shoots of the season, 
the branches subcorymbose, glabrous to villous, few-headed. Leaves eeee re acta resi mate s, 
remotely serrulate, cuneate-oblanceolate to lance-oblong, 2-8 cm. long, 5-1 ro 
to a sessile base or amplexicaul ; heads 3-5 cm. across ; phyllaries of the inv ere Gaatiatacteest, 
with short, flat, appressed or slightly reflexed tip, or tip more subulate and strongly reflexed; rays 
16-34, ~ 18 mm. lon ng. 
Sal marshes, Hu map Trawttion Zone; San Francisco, San Pablo, and seve Bays, California. Type 
locality: * Califor Principally Aug.—Oct. but found in flower throughout the yea 
Grindelia sataiacs gra om Bay Reg. LN Bg (Coindees ria kao bo panto Jepson, Fl. a 
Mid. es lif. the Re Stems herbaceous re the wn, stout, freely b glabrous, 5-15 dm. high 
Leaves subcor not resinous. motely pirate. serrulate, or pool an one hanya or oblanceolate, 
strongly ‘clasping, the "awe mostly u ti o 8 cm. long and 1 m. wide, those near the heads much reduced; heads 
3- pcisccn baghe: resinous, the senna green tip the phyllaries erect or. spreading, the outer ones 
str s 20-35, 10-12 mm. long. Salt Pate del Tower Nouceun Zone; Suisun Bay, Solano County, 
Ca Vinci As all’ protiability this is a stabilized hybrid population of the parentage G. humilis and G. camporum, 
Type locality: Suisun marsh. July—Sept. 
wea ots 
x AS slit 
XS : > 
Ne At yee Ms 
\ / 
a Porophyllum gracile 5418. Grindelia stricta : 
. Grindelia humilis 5419. Grindelia integrifolia 
