Sulphur Clover - Trifolium ochroleucon

Description

A short to medium rather hairy clover, with short rhizomes and ascending stems. Leaflets oblong to lanceolate, Stipules oblong with a slender apex. Flowers yellowy white, rarely pinkish. 15 to 20 mm with short stalked or unstalked globose or oblong heads, terminal.

Similar Species

Trifolium pannonicum (Hungarian Clover). A scarce casual, probably a grass-seed contaminant, that may turn up.

Identification difficulty
ID guidance

Whitish-yellow flower; flowers 15-20, in subsessile racemes ((i.e flower-heads either unstalked or with very short stalk).  T pannonicum usually has more florets and at least some flower heads are stalked.  

Recording advice

A photograph of whole plant showing subsessile flower heads (a side-on close-up of flower head will help)

Habitat

Grassy places.

When to see it

Flowers June and July.

Life History

Perennial.

UK Status

Local, mainly found in eastern England and quite scarce elsewhere.

VC55 Status

Rare in Leicestershire and Rutland. It was not recorded in the 1979 Flora survey of Leicestershire.

In the current checklist, it is listed as Native and rare, on calcareous grassland, with recent records from limestone sites in the the east of Rutland.  

It is on the Rare Plant Register

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Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map