Home Flora of Pakistan
Home
Name Search
Families
Genera
Species
District Map
Grid Map
Inventory Project
!Tanacetum L. Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in Index Nominum Genericorum (ING)Search in NYBG Virtual HerbariumSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenSearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font
 

Published In: Species Plantarum 2: 843. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Synonym Text: Spathipappus Tzvelev in Schischk. & Bobrov, Fl. USSR 26: 875. 1961; Podlech in Rech. f., Fl. Iran. Comp. IV. 158: 148. 1986.
General/Distribution: A fairly large genus comprising c. 152 species, distributed mainly in Europe and temperate Asia, N Africa, N America and in the southern hemisphere by introduction (Humphries, 1993). Represented in Pakistan by 12 species, mainly confined to mountainous areas in North and North West.
Comment/Acknowledgements: Co-author: Ronaq Khan, Natural History Museum, London.

 

Export To PDF Export To Word
Perennial or rarely annual herbs, usually aromatic, often rhizomatous and basally woody shrublets with erect or ascending, leafy and branched, sometimes subscapiform shoots. Leaves alternate, pinnatifid or 1-3-pinnatisect, punctate, rarely entire, serrate. Capitula heterogamous, radiate, disciform, or discoid, solitary or corymbose. Involucre hemispherical or shallowly to broadly campanulate, phyllaries 3-4-seriate, imbricate, with scarious or sometimes with dark brown margins. Receptacle flat, hemispherical or convex, epaleate. Ray-florets, when present, female, fertile or sterile, with 3-lobed, white, yellow or pink ligules, in discoid forms tubular, female or hermaphrodite. Disc-florets tubular, 5-lobed, yellow. Anthers minutely sagitatte at the bases, apically ovate-appendaged. Cypselas homomorphic, flat, usually oblong, 5-12-ribbed, glabrous or with sessile glands, without myxogenic cells or secretory canals. Pappus a corona or usually unevenly toothed, scaly or lobed, sometimes adaxially well-developed.
 

Export To PDF Export To Word Export To SDD
Switch to indented key format
1 Capitula discoid, with all florets tubular. (11)
+ Capitula radiate, with marginal florets ligulate. (2)
2 (1) Ligules white. (3)
+ Ligules pale pink to reddish-pink. 9 Tanacetum coccineum
3 (2) Capitula solitary, terminal. (4)
+ Capitula few (3) to many (30), in lax corymbs. 2 Tanacetum parthenium
4 (3) Ligulate florets sterile, with ovaries jointed with the corolla bases. (10)
+ Ligulate florets fertile, with the ovaries not jointed with the corolla bases. (5)
5 (4) Pappus of a short corona or deltate rigid teeth. (6)
+ Pappus of obtuse, membranous scales. 3 Tanacetum pakistanicum
6 (5) Leaves divided more than halfway to midrib; Capitula longer than broad. (7)
+ Leaves divided less than halfway to midrib; capitulum broader than long. 4 Tanacetum emodi
7 (6) Leaves not clustered around the inflorescence, mostly in the middle or lower half of the stem. (8)
+ Leaves clustered around the inflorescence. 5 Tanacetum roylei
8 (7) Leaves glabrescent to glabrous, uppermost leaves linear, entire. Involucre less than 10 mm in diameter. (9)
+ Leaves densely silvery-gray pubescent on both sides, uppermost leaves dissected. Involucre 12 – 18 mm in diameter. 8 Tanacetum cinerariifolium
9 (8) Leaves pinnatisect. Pappus shortly coronate, c. 0.25 (- 0.5) mm long. 6 Tanacetum stoliczkae
+ Leaves pinnatifid. Pappus of irregular teeth and linear, free appendages. 7 Tanacetum baltistanicum
10 (4) Leaves 20 – 50 mm long, 2-3-pinnatisect. Phyllaries with dark scarious margins. Pappus more than 1.5 mm long. 11 Tanacetum griffithii
+ Leaves 5 – 10 mm long, unipinnatisect. Phyllaries with pale puberulous margins. Pappus less than 1 mm long. 12 Tanacetum chitralense
11 (1) Leaves less than 3 cm long, with inconspicuous or short petioles. 10 Tanacetum artemisioides
+ Leaves more than 4 cm long, with long petioles. 1 Tanacetum falconeri
 
 
© 2018 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110