1	"Leaves crenate, each tooth with a distinct, +- yellow bump near tip"	"Grindelia squarrosa var. serrulata"
1	"Leaves entire or serrate; if serrate, +- yellow bump near tip of teeth 0;"	2
2	"Plants of dunes, salt marshes, coastal bluffs, tidal flats, sloughs; leaves +- fleshy; NCo to SCo, deltaic GV (Suisun)"	3
2	"Plants of fields, grassland, woodland, serpentine soils, disturbed areas, or interior wetlands; leaves not fleshy; widespread (absent from Suisun delta)"	7
3	"Stems woody in proximal 3--15 dm, erect; phyllaries appressed to head except for short, erect tips, tip < 3 mm long; tidal wetlands; CCo (San Francisco Bay)"	"Grindelia stricta var. angustifolia"
3	"Stems herbaceous or woody in proximal 0--1 dm, erect, decumbent, or prostrate; phyllaries generally spreading, recurved, or coiled; widespread"	4
4	"Stems erect, 6--20 dm; salt marshes, sloughs"	5
4	"Stems prostrate, decumbent, or erect, if erect, stems 1--6 dm; dunes, coastal bluffs"	6
5	"Leaves on flowering stems generally widest at base or of +- equal width throughout; Deltaic GV (Suisun)"	"Grindelia X paludosa"
5	"Leaves on flowering stems generally widest at rounded tip or +- equally wide at tip and base but narrower in middle of leaf; NCo"	"Grindelia stricta var. stricta"
6	"Plants decumbent or erect; leaves generally sessile, sometimes clasping stems, +- same width throughout or widest near base; NCo to SCo, ChI"	"Grindelia stricta var. platyphylla"
6	"Plants decumbent; leaves generally tapered to petioles, widest at rounded tip; NCo"	"Grindelia stricta var. stricta"
7	"Phyllaries flattened throughout, gradually tapered to tips; phyllary tips erect; plants generally +- hairy"	8
7	"Phyllaries flattened only at bases, rounded in &times;-section distally, abruptly narrowed to tips; phyllary tips spreading, reflexed, or coiled; plants generally glabrous"	9
8	"Heads 7--10 mm diam; rays 8--9 mm; PR (San Diego Co.)"	"Grindelia hallii"
8	"Involucres 7--25 mm diam; rays 8--20 mm; NCoR, GV, CW"	"Grindelia hirsutula"
9	"Heads +- obconic; e DMoj, wet clay of meadows, woodland borders"	"Grindelia fraxinipratensis"
9	"Heads bell-shaped or hemispheric, widening abruptly at the base; widespread"	10
10	"Phyllaries appressed to head for > 3/4 length, reflexed or coiled portion < 3 mm; PR (San Diego Co.)"	"Grindelia hallii"
10	"Phyllaries appressed to head for < 1/2 length, spreading, reflexed, or coiled portion > 5 mm; widespread"	11
11	"Outer phyllaries reflexed, curved, or coiled < 270&deg;"	"Grindelia camporum"
11	"> 75% of phyllaries coiled or recurved 270--360&deg; or more"	12
12	"Plants 6--25 dm; mature involucre bell-shaped to hemispheric, 15--22 mm diam; SnJV, SCo (geog subset of sp.)"	"Grindelia camporum"
12	"Plants 1--5 dm; mature involucre bell-shaped, 7--12 mm diam; CaR, MP"	"Grindelia nana"