Seasonal Wild Flowers

Sea Arrowgrass

Triglochin maritimum

Juncaginaceae

May to August

It is found all round the coast and a few places inland.

See the BSBI distribution map for Sea Arrowgrass

It grows in coastal and estuarine saltmarshes, and

occasionally beside salt-treated roads.

Sea Arrowgrass is a native, rhizomatous, perennial

herb, growing up to 60cm.

It is a monocoteledon.

Flowers are in slender spikes.

They are small (3 to 4mm), with 6 perianth segments,

6 stamens and 6 styles, which form a white tuft

(pictures 2 and 3).

Fruits are green, stalked globes - made up of 6 carpels

and the remains of the styles - which rise above the

perianth segments.

Leaves are basal, linear and flattened at the top.

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Next page: Sea-kale

Sea Arrowgrass, Lune estuary saltmarsh

Flowering spikes

Flowers- tufts of styles, stamens and segments

Fruits rising above perianth segments

Fruits - 6 carpels, 6 remaining styles

Flat bladed leaves

Fruiting flower stems