872 coMPOSiTAE (composite family) 



with the divisions entire or again cleft ; involucre very slender, greenish ; flower 

 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 vems 

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



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

 to Mo. and La. 

 H- 1- Involucre slender-campanulate ; secondary basal bracts 2-o, linear, loose. 



IL P. Bo6ttii (DC.) Gray. Simple, dwarf, 1-3 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, tapermg 

 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-m any-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 lepa^, a hawk.) 



* Bootstock slender, elongated; stolons usually iwesent ; scapose. 



H- Sca2:)e l-3(-l)-/iea(ZctZ. 



1. H. PiLOSELLA L. (MousE-EAK.) Leavcs oblong-lanceolate 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.) 



■*- t- Scape bearing several-many heads in a rather dense corymb. 



++ Flowers orange-red. 



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

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

 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.) 



■4-v ++ Flowers yellow. 



3. H. FLORiBUNDUM "Wlmm. & 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 bridit 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. PRATtNSE Tausch. (King Devil.) 6^ree?i, not glaucous ; stolons few ; 

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

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

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

 (Nat. from Eu.) 



