rhachis

American  

[rey-kis] / ˈreɪ kɪs /

noun

plural

rhachises, rhachides

1. a variant of rachis.

---

rhachis British  

/ ˈreɪkɪs /

noun

1. a variant spelling of rachis

---

Example Sentences

Spikelets 2–6-flowered, with a terminal imperfect flower or naked rudiment, closely imbricate-spiked on one side of a flattish rhachis; the spikes digitate.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Gray, Asa

Spikelets terete or flattish, several–many-flowered; the flowers mostly early deciduous by the breaking up of the rhachis into joints, leaving the short and unequal 1–3-nerved membranaceous lower glumes behind.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Gray, Asa

Achene lenticular, the edge turned to the rhachis; spikelet flattened, many flowered; rhachis narrow, not winged.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Gray, Asa

Spikelets 1-flowered, with a mere naked short-pedicelled rudiment of a second flower, imbricate-spiked on one side of a flattish rhachis; the spikes usually digitate at the naked summit of the flowering culms.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Gray, Asa

Spikelets spiked or somewhat racemed, in 2–4 rows on one side of a flattened or filiform continuous rhachis, jointed upon very short pedicels, plano-convex, awnless, 1-flowered.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Gray, Asa