討論:薊屬

山羊百科，林文智老師的植物、山岳、攝影紀錄

1. 葉下表面密被白色綿毛。

2. 總苞片先端闊張，乾膜質；葉線形....................... 7. C. lineare

2. 總苞片先端銳尖，革質；葉非線形。

3. 頭花不下垂；總苞片不具黏腺體............................. 4. C. hosokawae

3. 頭花下垂；總苞片被線形的黏腺體................. 9. C. suzukii

1. 葉下表面非上述，葉近乎無毛或被毛，或兩面被蛛絲狀毛。

4. 花冠裂片比花冠筒短。

5. 葉多少被蛛絲狀毛，葉羽狀淺裂；總苞片先端無刺；花冠長20-25 mm.. 8. C. morii

5. 葉不被蛛絲狀毛，葉羽狀全裂；總苞片先端具銳尖刺；花冠長不及20 mm。

6. 花冠裂片毛細管狀，寬約0.5 mm；總苞片不反捲，先端的刺長5-15 mm；花藥長3 mm...............3. C. ferum

6. 花冠裂片寬約1 mm；總苞片反捲，先端的刺短於5 mm；花藥長6 mm.. 2. C. brevicaule

4. 花冠裂片比花冠筒長。

7. 總苞片外表面中央被線形的黏腺體。

8. 花冠紫紅色........................................ 5a. C. japonicum var. australe

8. 花冠白色..................................... 5b. C. japonicum var. takaoense

7. 總苞片外表面中央不被有黏腺體。

9. 葉淺裂或半裂，缺刻三角形，裂片6-9對，卵形至卵披針形；花冠長11-16cm；冠毛長約12 mm ........1. C. arisanense

9. 葉深裂，缺刻常成方框狀，裂片約4對，裂片線形或長披針形；花冠長18-21 cm；冠毛長約16 mm............... 6. C. kawakamii

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