Youngia nilgiriensis

{{Short description|Species of flowering plant}}

{{moresources|date=July 2020}}

{{Use dmy dates|date=July 2020}}

{{Use Indian English|date=July 2020}}

{{Speciesbox

| image =

| genus = Youngia

| species = nilgiriensis

| authority = Babc.

}}

Youngia nilgiriensis is an endangered perennial herb. It is endemic to the Sispara area of the Kundah range of the Nilgiri Hills, Tamil Nadu, South India characterised by vast stretches of grasslands interrupted by numerous sholas at an altitude of around {{convert|2060|m}}. It is listed as an endangered species in the Red Data Book on Indian Plants.

The plant is {{convert|30|-|47|cm}} high. Radical leaves are {{convert|10|-|16|cm|abbr=on}} × {{convert|13|-|30|mm|abbr=on}}, oblanceolate, Iyrate-pinnatifid, acute, upper surface puberulous, lower surface glabrous; petiole long; cauline leaves: lower ones similar to radical leaves or acuminate; upper ones sessile, lanceolate, acuminate-caudate.

• Flowers are yellow. Heads are 2–4 together, about 13-flowered.
• Peduncle is {{convert|15|mm|abbr=on}} long, glabrous. Involucre {{convert|8|-|9|mm|abbr=on}} long, glabrous, dark green.
• Corolla is {{convert|9|-|10|mm|abbr=on}} long; ligule 2 mm broad, dentate, 1.0–1.5 mm long; tube 2 mm long, acuminate.
• Anthers are 2 mm long; appendages 0.25 mm long, acuminate; filament 1 mm long.
• Achenes is 5 mm long, sub-compressed, apex pale and strongly attenuate, base scarcely attenuate, ribs 12–14, unequal, brown.
• Pappus is 5 mm long, 2–3 serrate, ash-grey.