|
|
|
108. Secale Linnaeus, Sp. Pl. 1: 84. 1753.
黑麦属 hei mai shu
Plants annual [rarely perennial]. Culms usually erect. Spike distichous, very dense; rachis usually very brittle, pubescent. Spikelets 1 per node, sessile, with 2 florets, occasionally with rudimentary 3rd floret. Glumes linear-subulate, keeled, hispid along keel, margin membranous, apex acuminate or awned. Lemma lanceolate, asymmetric, 5-veined with 2 marginal veins forming keels, hispid along keels, apex acuminate or tapering into long, straight, scabrous awn. Palea equaling lemma, smooth or scabrous along keels or ciliate distally, apex 2-dentate. Lodicules ciliate distally. Caryopsis oblong, somewhat laterally compressed, deeply furrowed, apex pubescent. x = 7.
About five species: mainly in temperate Europe and Asia; three species (two introduced) in China.
|
|
|
|
| 1 |
Glume apex long awned, awn 2–3 × as long as glume body. |
|
3 S. sylvestre |
| + |
Glume apex acuminate or shortly awned, awn very much shorter than lemma body |
|
(2) |
| |
|
|
|
| 2 (1) |
Spike rachis tough. |
|
1 S. cereale |
| + |
Spike rachis fragile, or sometimes tough proximally. |
|
2 S. segetale |
|
|
|
Lower Taxa
| Related Links (opens in a new window) |
|
Treatments in Other Floras @ www.efloras.org
Other Databases
|
|
|
|
|
|
|
|
|
