討論:薊屬

山羊百科，林文智老師的植物、山岳、攝影紀錄

1. Leaves densely white cottony on lower surfaces.

2. Apex of inner involucral bracts dilated, scarious; leaves linear ........ 7. C. lineare

2. Apex of inner involucral bracts acuminate; leaves broad.

3. Heads nodding; involucral bracts with linear viscid glands on outer surface ....... 9. C. suzukii

3. Heads erect; involucral bracts not glandular ......... 4. C. hosokawae

1. Leaves subglabrous, hairy or cobwebby on both surfaces.

4. Limb of corolla shorter than tube.

5. Leaves more or less cobwebby, pinnatilobed; involucral bracts barely spiny; corolla 20-25 mm long ........ 8. C. morii

5. Leaves not cobwebby, usually pinnatifid; involucral bracts spiny; corolla less than 20 mm long.

6. Corolla limb capillary, ca. 0.5 mm wide; spine of involucral bracts 5-15 mm long; anthers 3 mm long ....3.C. ferum

6. Corolla limb broadened, 1 mm wide; spine of involucral bracts less than 5 mm long; anthers 6 mm long. ..... 2. C. brevicaule

4. Limb of corolla longer than or equal to tube.

7. Involucral bracts with linear viscid glands abaxially.

8. Flowers purple ......... 5a. C. japonicum var. australe

8. Flowers white ....... 5b. C. japonicum var. takaoense

7. Involucral bracts without viscid glands abaxially.

9. Leaf segments (6-)8-9, ovate to ovate-lanceolate; corolla 11-16 mm long; pappus ca. 12 mm long ........ 1. C. arisanense

9. Leaf segments remote, ca. 4, linear to linear-lanceolate; corolla 18-21 mm long; pappus ca. 16 mm long ......... 6. C. kawakamii