9. Tribe ANTHEMIDEAE

720
ANTHEMIDEAE
4b. Shrubs, much branched; middle stem leaves (1 or)2-pinnatisect, segments 2 or 3 pairs, or 4 pairs
and then leaves ovate or broadly ovate, more than 1 cm wide; capitula in broad or narrow panicles;
capitula (2.5–)3–5 mm in diam.
5a. Capitula ovoid, erect, in broad and branched or somewhat broad panicles; stem purple;
lower leaves with 3–5 pairs of segments, middle leaves with (2 or)3 or 4 pairs of
segments .................................................................................................................................... 138. A. halodendron
5b. Capitula globose or subglobose, nodding, in broad or narrow panicles; stem gray, brown
or yellowish; lower leaves with 2–4 pairs of segments, middle leaves with 2 or 3(or 4) pairs.
6a. Middle stem leaves (5–)6–8 × 3–4 cm, segments 2 or 3(or 4) pairs, lobules narrowly
linear, straight; capitula in narrow or somewhat broad panicles; stem gray .......................... 137. A. wudanica
6b. Middle stem leaves 2–5(–8) × 1.5–3(–4) cm, segments (1 or)2 or 3 pairs, lobules
linear or falcate; capitula in lax and broad panicles; stem yellowish ........................... 136. A. sphaerocephala
3b. Plants to 20–50(–60) cm tall; capitula (2.5–)3(–4) mm in diam., or if more than 4 mm then
capitula globose and lobules in middle stem leaves linear to filiform, 5–10 × 0.5–1 mm, or
leaves palmately 5–7-partite.
7a. Stem unbranched or few and shortly capitate branched, pubescent; leaves palmately
5–7-partite, sericeous-pubescent on both surfaces; capitula in narrow panicles; phyllaries
pubescent ..................................................................................................................................... 155. A. kuschakewiczii
7b. Stem branched, pubescent or glabrescent; leaves 1 or 2(or 3)-pinnatisect; capitula in broad
or narrow panicles; phyllaries pubescent or glabrescent.
8a. Lowermost and middle stem leaves 2(or 3)-pinnatisect, lobules 0.5–0.8 mm wide; capitula
hemispheric, pedunculate, in narrow racemelike panicles .......................................................... 165. A. oligocarpa
8b. Lowermost and middle stem leaves 1- or 2-pinnatisect, lobules 1–2.5 mm wide; capitula
not hemispheric, if pedunculate then leaf lobes falcate; capitula in broad or narrow panicles.
9a. Stem less than 30 cm tall; leaflike bracts 2–3 × capitula and longer than fertile branches;
synflorescence a narrow panicle.
10a. Middle stem leaves 1–2 × 0.5–1.5 cm, pinnatisect, midvein flat ..................................... 150. A. wellbyi
10b. Middle stem leaves 3.5–4.5 × 2–3 cm, 2-pinnatisect, midvein abaxially
prominent, white ...................................................................................................... 152. A. gyangzeensis
9b. Stem 30–60 cm tall; leaflike bracts longer than capitula but shorter than fertile
branches; synflorescence a broad panicle.
11a. Lateral lobes of middle stem leaves linear, linear-lanceolate, or falcate-lanceolate,
1.5–2.5 mm wide .............................................................................................................. 151. A. waltonii
11b. Lateral lobes of middle stem leaves narrowly linear or filiform, straight,
1–1.5 mm wide .................................................................................................................... 142. A. prattii
2b. Capitula 1–2.5(–3) in diam.; middle stem leaf lobules narrowly linear or filiform, 0.5–1.5(–2) mm wide; or if
capitula 2–2.5(–3) mm in diam. then plants herbaceous, lobules of leaves thin, 0.5–1 mm wide.
12a. Shrubs or caespitose subshrubs, with strong woody stock; lobules of middle stem leaves narrowly
linear or filiform, 0.5–1.5(–2) mm wide; growing in arid areas.
13a. Lower branches more than 12 cm, upper branches more than 5 cm; capitula in broad panicles.
14a. Petiole in middle stem leaves 2–3(–4.5) cm; capitula subglobose ..................................... 143. A. klementzae
14b. Leaves sessile or petioles less than 1.5 cm in middle stem leaves; capitula ovoid or
ovoid-ellipsoid.
15a. Middle stem leaves pinnatisect, lobes 0.5–1 mm, rarely mixed 1- or 2-lobuled at
basal or middle lobes ...................................................................................................... 141. A. ordosica
15b. Middle stem leaves (1 or)2-pinnatisect, 3-lobuled at basal and middle lobes,
lobes or lobules 1.5–2 mm.
16a. Branches many, nearly horizontal; lobule apex obtuse, mucronulate ................ 140. A. songarica
16b. Branches ascending; lobule apex acute.
17a. Bark usually deciduous; lobules 15–20 × 1.5–2 mm ............................. 146. A. oxycephala
17b. Bark persistent; lobules 4–10 × (0.5–)1–1.5 mm .................................... 147. A. campestris
13b. Lower branches 4–10 cm, upper branches 3–5 cm; capitula in narrow or somewhat broad
panicles.
18a. Lower and middle stem leaves pinnatisect, segments of lowermost leaves 2 or 3 pairs,
segments of middle leaves 1 or 2 pairs.
19a. Ultimate lobules of leaves 1.5–2.5 mm wide; involucre 2–2.5 mm in diam. ........ 145. A. xanthochroa
19b. Ultimate lobules of leaves 0.5–1.5 mm; involucre 2–2.5(–3) mm in diam.