Sium medium Fisch. & C. A. Mey., Index Seminum (LE, Petropolitanus) 9(Suppl.): 19 (1844) (syn: Drepanophyllum medium (Fisch. & C. A. Mey.) Koso-Pol.; Sium latijugum C. B. Cl.);
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China (Xinjiang), Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Siberia (W-Siberia), Afghanistan (Herat, Takhar), Pakistan (Baluchistan), India (NW-Himalaya) as per CoL;
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Large Leaflet Water Parsnip;
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A common herb along marshes, lake banks and channels. up to 1.5 m tall, leaves compound, leaflets lanceolate to ovate, serrate; rays 10-15, involcre bracts 5-8, involucel bracts 5-8; fruit ovoid, 2 mm across with prominent ridges.
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Apiaceae (Umbelliferae) Week: Sium latijugum from Kashmir:
Sium latijugum C.B. Clarke in Hook. f., Fl. Brit. Ind. 2: 683. 1879
A common herb along marshes, lake banks and channels. up to 1.5 m tall, leaves compound, leaflets lanceolate to ovate, serrate; rays 10-15, involcre bracts 5-8, involucel bracts 5-8; fruit ovoid, 2 mm across with prominent ridges.
Photographed from Tangmarg and Botanical Garden Srinagar, Kashmir..

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Apiaceae Fortnight: Sium latijugum from Kashmir–GSJUNE33/42 : 1 post by 1 author. Attachments (2)
Sium latijugum C.B. Clarke in Hook. f., Fl. Brit. Ind. 2: 683. 1879
A common herb along marshes, lake banks and channels. up to 1.5 m tall, leaves compound, leaflets lanceolate to ovate, serrate; rays 10-15, involcre bracts 5-8, involucel bracts 5-8; fruit ovoid, 2 mm across with prominent ridges.
Photographed from Tangmarg and Botanical Garden Srinagar, Kashmir.. 


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Tangmarg on June 19, 2010- Kashmir; Sium latijugum from Kashmir – efloraofindia | Google Groups


SK 3005 01 October 2021: 7 very high res. images.
Location: Kalikot, West Nepal
Altitude: 15000m.
Date: 16 August 2021
Habit : Wild
Which Apiaceae. …??


Maybe some Heracleum species.
Pl. check.


Sium medium Fisch. & C.A.Mey. ??


Yes, appears close as per GBIF specimens- onetwothree.


But POWO does not give its distribution in our area.
However, CoL who considers Sium latijugum C. B. Cl. as a syn. gives its distribution in NW Himalaya.
POWO lists it (Sium latijugum C. B. Cl.) as a separate taxon.
Pl. check.




Identification required for this sp.1132 from kashmir: 3 high res. images.
Habitat: Damp marshy areas


Pl. check https://efloraofindia.com/2011/02/06/apiaceae/


Sium medium Fisch. & C.A.Mey. !


Yes, appears close to images at
https://efloraofindia.com/2011/03/30/sium-latijugum/


Leaves are different from S.latijigum


It is same as Sium medium as per details herein.


It is Sium latijugum only. S. medium is a distinct species native to Kazakhstan, Kirgizstan, Xinjiang, not reported from India.


According to the GBIF and CoL this sp. has got distribution in Jammu and Kashmir.


it depends on which database you are following
If you follow POWO it will have distribution as indicated by me
If you follow COL which considers S. latijugum as synonym of S. medium, naturally it will combine distribution of both.


I guess any database is incomplete in itself. I have found many sp. having distribution in Nepal has no mention in POWO.

 


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References:
The Plant List  Sium latijugum – Large Leaflet Water Parsnip
Sium medium … —new species for the flora of Nepal– Alexander Sukhorukov- April 2014 (Abstract- Sium medium (Apiaceae) and Trifolium resupinatum (Fabaceae) have been collected in the far western part of Nepal and are new species for the country. Their morphology and distribution patterns are discussed briefly. …) (Sium medium is associated with moist places (streams, etc.) in different parts of its range (Sukhorukov, pers. obs.). The species has an extensive range from the northern part of Central Asia to Pakistan and N India. Southern populations of S. medium—a common plant in Western Himalaya—were described as S. latijugum Clarke (1879). However, Kamelin (2002) argues that there are no morphological differences between the two species)