872 coMPOsiTAE (composite family) 



with the divisions entire or again cleft ; involucre very slender^ greenish ; flowers 

 greenish-white; pappus cream-color. {Nahalus Hook.) — Rich moist woods, 

 Nfd. to Man., s. to Ga. and Tenn. Late July-early Oct. Var. hispidula 

 Fernald. Stems villous or hispid ; leaves at least hispidulous on the veins 

 beneath. — Wet woods, e. Que. to Vt. and Ct. 



Var. cinnam5mea Fernald. Pappus cinnamon-color or deep brown. — Ind. 

 to Mo. and La. 



-t- -(- Involucre slender-campanulate ; secondary basal bracts 2-S, linear, loose. 



11. P. Bo6ttii (DC.) Gray. Simple, dwarf, l-o dm. high, pubescent at the 

 summit : the heads in an almost simple raceme ; lowest leaves halberd-shaped 

 or heart-shaped, the middle oblong, the upper lanceolate, nearly entire, tapering 

 into a margined petiole ; involucre livid, 10-18-flowered ; the primary bracts 

 10-15, very obtuse; pappus pale straw-color. — Alpine regions, n. N. E. and 

 n. N. Y. July-Sept. 



106. HIERAcIUM [Tourn.] L. Hawkweed 



Heads 12-many-flowered. Involucre more or less imbricated. Achenes 

 short, oblong or columnar, striate, not beaked ; pappus a single row of tawny 

 and fragile capillary rough bristles. — Hispid or hirsute and often glandular 

 perennials, with entire or toothed leaves, and single or panicled heads of mostly 

 yellow flowers ; summer and early autumn. (Name from Upa^, a haiok.) 



* BootstocJc slender^ elongated; stolons usually present ; scapose. 



•I- Scape 1-S (-4) -headed. 



1. H. PiLOSELLA L. (MousE-EAK.) Lcavcs oblong-lanccolate or spatulate, 

 2-6 cm. long, setose upon both surfaces, green above, whitened beneath with 

 close stellate tomentum ; stolons several, slender, leafy ; scape 5-20 cm. high, 

 1 -headed ; heads 2.5-3 cm. broad; flowers yellow. — Grassland, becoming fre- 

 quent. June, July. (Nat. from Eu.) 



Var. viRiDE Ser. Coarser ; leaves often 1 dm. long, green on both surfaces ; 

 scape l-3(-4)-headed, 1.5-4 dm. high. — Fields, pastures, etc., also becoming too 

 frequent. June, July. (Nat. from Eu.) 



-•- -»- Scape bearing several-many heads in a rather dense corymb. 



-^ Flowers orange-red. 



2. H. AURANTiAcuji L. (Orange H., Devil's Paint-brush, Grim the Col- 

 lier.) Long-hirsute ; leaves oblanceolate, 6-15 cm. long, green on both sides ; 

 stolons numerous, slender; scape 2-6 dm. high, usually 1-2-bracted ; heads 

 about 2 cm. broad. — Fields, etc., e. Que. to Ont. and Pa., locally too abundant. 

 June, July. (Nat. from Eu.) 



•»-v ++ Flowers yellow, 



3. H. FLORiBT^NDUM Wimm. & Grab. Glaucous; stolons numerous; basal 

 leaves narrowly oblanceolate, 5-15 cm. long, essentially glabrous above., setose 

 on the margin, midrib, and sometimes very sparingly on the surface beneath ; 

 primary scape 3-8 dm. high, usually naked or with only 1 leaf near the base ; 

 involucre nigrescent ; flowers bright yellow. — Fields and open ground, N. B. and 

 e. Me. June, July. (Nat. from Eu.) — Luxuriant plants developing decumbent 

 leafy secondary flowering axes as well as stolons. 



4. H. PRATKNSE Tausch. (King Dkvil.) G^'reew, not glaucous ; stolons few ; 

 basal leaves narrowly oblong to oblanceolate, 1-2.5 dm. long, setose upon both 

 surfaces; scape 4-8 dm. Ijigh, bearing 1-3 well developed leaves; otherwise 

 like the preceding. — Fields, roadsides, etc., e. Que. to s. N. Y. June-Aug. 

 (Nat. from Eu.) 



