Lythrum hyssopifolia
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Lythrum hyssopifolia L.
Grass Poly
Lythraceae
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Protologue: Sp. Pl.: 447 (1753)
Pronunciation: Ly´-thrum hys-so-pi-fò-li-a
Etymology:Gr. lythron, blood or clotted blood, from use of Lythrum salicaria, the type species, to stop hemorrhaging
+ Hyssop + folia, leaf/leaved, thus with leaves resembling Hyssop, probably Hyssopus officinalis L. (Lamiaceae)
Jepson eFlora Treatment
Jepson eFlora Key to Lythrum
SD County Synoptic Voucher
Distribution:

Left: S.D. County Plant Atlas (http://sdplantatlas.org). Right: CCH2. Click to see current herbarium records.

Lythrum hyssopifolia
Plant, an annual or short-lived perennial. Branches decumbent or ascending.

Lythrum hyssopifolia
Shoot close-ups. Note square, often reddish stems, opposite (basally) to alternate (distally) leaves.

Lythrum hyssopifolia
Inflorescence, which could be interpreted as a spike with large flower bracts or of solitary, axillary flowers.
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