1	Capsule spirally twisted, not setose; inflorescences several per axil, densely clustered; leaf blade broadly oblong-obovate, apex somewhat truncate and usually lobed.		1 H. isora
+	Capsule not twisted, sparsely to densely softly setose; inflorescences 1 per axil, often spikelike or with subtending leaves very reduced to form a terminal thyrse; leaf blade usually narrower, apex not truncate, often not lobed		(2)
2 (1)	Leaf blade margin entire or rarely with a few minute teeth near apex		(3)
+	Leaf blade margin obviously serrate or dentate from base		(6)
3 (2)	Capsule apex obtuse; petiole ca. 12 mm, leaf blade 6-10 cm, apex obtuse.		2 H. obtusa
+	Capsule apex pointed or beaked; petiole 3-9 mm, leaf blade 3.5-7.5 cm, apex usually acuminate, acute or obtuse with acumen (obtuse in H. prostrata)		(4)
4 (3)	Subshrubs to 0.45 m tall, stems prostrate; leaf blade 2-3.5 cm.		10 H. prostrata
+	Shrubs 1-2 m tall, stems erect or ascending; leaf blade 3.5-7.5 cm		(5)
5 (4)	Branchlets pilose with gray-green hairs; leaf blade margin entire to apex; capsule with dense mixed stellate and long simple hairs.		3 H. angustifolia
+	Branchlets tomentose with yellow-brown hairs; leaf blade margin entire or denticulate near apex; capsule with dense long simple hairs.		4 H. lanceolata
6 (2)	Calyx 12-18 mm; capsule 2.5-5 cm		(7)
+	Calyx 4-6 mm; capsule 1.5-2 cm		(8)
7 (6)	Leaf blade margin lobed; petals white.		8 H. viscida
+	Leaf blade margin irregularly dentate; petals red or purplish red.		9 H. hirsuta
8 (6)	Upper leaves of fertile shoots very reduced to a lax thyrse; petals yellow.		5 H. elongata
+	Upper leaves of fertile shoots not or only slightly reduced; petals red-purple or blue-purple		(9)
9 (8)	Leaf blade abaxially sparsely stellate pilose; petals with central line of hairs; stipules as long as petiole.		6 H. glabriuscula
+	Leaf blade abaxially densely brown stellate tomentose; petals glabrous; stipules ca. 2 × as long as petiole.		7 H. plebeja