Puccinellia parishii Hitchc.

Annuals, Aquatic, leaves emergent, Terrestrial, not aquatic, Stems nodes swollen or brittle, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems caespitose, tufted, or clustered, Stems terete, round in cross section, or polygonal, Stem internodes hollow, Stems with inflorescence less than 1 m tall, Stems, culms, or scapes exceeding basal leaves, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous, Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrou s, Leaf sheath and blade differentiated, Leaf blades linear, Leaf blades very narrow or filiform, less than 2 mm wide, Leaf blades 2-10 mm wide, Leaf blades mostly flat, Leaf blade margins folded, involute, or conduplicate, Leaf blades mostly glabrous, Ligule present, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence a contracted panicle, narrowly paniculate, branches appressed or ascending, Inflorescence solitary, with 1 spike, fascicle, glomerule, head, or cluster per stem or culm, Inflorescence with 2-10 branches, Inflorescence branches more than 10 to numerous, Lower panicle branches whorled, Flowers bisexual, Spikelets pedicellate, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 2 florets, Spikelets with 3-7 florets, Spikelets solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating above the glumes, glumes persistent, Spikelets disarticulating beneath or between th e florets, Rachilla or pedicel glabrous, Glumes present, empty bracts, Glumes 2 clearly present, Glumes distinctly unequal, Glumes shorter than adjacent lemma, Glumes 1 nerved, Glumes 3 nerved, Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma similar in texture to glumes, Lemma 5-7 nerved, Lemma apex truncate, rounded, or obtuse, Lemma awnless, Lemma margins thin, lying flat, Lemma straight, Callus or base of lemma evidently hairy, Callus hairs shorter than lemma, Palea present, well developed, Palea membranous, hyaline, Palea longer than lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2-branched, Stigmas 2, Fruit - caryopsis, Caryopsis ellipsoid, longitudinally grooved, hilum long-linear.

Puccinellia parishii is an uncommon species of grass known by the common names bog alkaligrass and Parish's alkali grass. It is native to the western United States, where it is known from a few locations in Arizona and New Mexico, and one occurrence each in California and Colorado.

Puccinellia parishii là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Hitchc. miêu tả khoa học đầu tiên năm 1928.

Международное научное название

Puccinellia parishii Hitchc.

Систематика
на Викивидах
Изображения
на Викискладе ITIS 41218NCBI 717844EOL 1114652IPNI 214409-2TPL kew-438799

Охранный статус NatureServe

Находящиеся под угрозой
Imperiled: Puccinellia parishii

Бески́льница Пари́ша (лат. Puccinellia parishii) — редкий вид цветковых растений рода Бескильница (лат. Puccinellia).

Ареал и местообитание

Бескильница Париша встречается на западе США, где известна по нескольким местонахождениям в Аризоне и Нью-Мексико и ещё по одному в Калифорнии и Колорадо^[2] .

Произрастает во влажных и сезонно влажных местах с щелочными почвами, такими как минеральные источники.

Ботаническое описание

Однолетнее травянистое растение с прямостоячими стеблями 20—22 см высотой с очень узкими плотными листьями. Соцветие — небольшой колос с несколькими узкими веточками, несущими колоски.

Это — эфемерная трава, она начинает выпускать стебли незадолго до окончания зимы, цветёт ранней весной, засыхает и увядает в июле^[2].

Примечания

Бески́льница Пари́ша (лат. Puccinellia parishii) — редкий вид цветковых растений рода Бескильница (лат. Puccinellia).