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.