Aloes and Lilies of Ethiopia and Eritrea
Aloes and Lilies of Ethiopia and Eritrea
Aloes and Lilies of Ethiopia and Eritrea
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294 ASPARAGACEAE<br />
Description<br />
Habitat <strong>and</strong><br />
distribution<br />
Asparagus setaceus<br />
Description<br />
the terminal branches with spines, <strong>and</strong> flowers with<br />
smaller sized white tepals (c. 3 mm long).<br />
Erect to climbing shrub to 2 m high. Branches glabrous, terete,<br />
smooth or lined with spines 1–3 mm long, curved downwards,<br />
seen also in the terminal branches. Cladodes fasciculate, 2–25(–35)<br />
together, flexible or straight, 13–26 mm long, flattened, angled,<br />
sometimes forming grooves on the upper side. Flowers fasciculate,<br />
3–6 together, axillary or terminal; pedicel 5–8 mm long, articulated<br />
at the middle or below. Tepals white, c. 3 mm long. Stamens shorter<br />
than the perianth; anthers yellow. Ovary 3locular with 5 ovules in<br />
each locule; style 1 mm long with 3 branched stigma. Bracts ovate,<br />
c. 1 mm long, membranaceous. Fruit 4–5 mm in diameter with one<br />
seed<br />
The species grows in Acacia-Commiphora woodl<strong>and</strong>,<br />
between 400 <strong>and</strong> 1500 m in Tigray, Gonder, Kefa, Gamo<br />
G<strong>of</strong>a, Sida mo, <strong>and</strong> Bale floristic regions in <strong>Ethiopia</strong> <strong>and</strong><br />
in <strong>Eritrea</strong>. It also occurs in Somalia, Kenya, Tanzania, <strong>and</strong><br />
Arabia. The flowering period in <strong>Ethiopia</strong> is from February<br />
to June; sometimes also from October to December.<br />
3. Asparagus setaceus (Kunth) Jessop<br />
The specific epithet ‘setaceus’ refers to the bristlelike<br />
fine cladodes. The species was described by Kunth in<br />
1850 as Aspara gopsis setacea from a collection made in<br />
South Africa by Drege. It was transferred to the genus<br />
Asparagus by Jessop in 1966. It is also known by the<br />
name A. plumosus.<br />
The species is easily recognised by the fine bristle-like<br />
cladodes which are arranged in one plane. However, it<br />
can sometimes be confused with A. africanus, from which<br />
it is distinguished by the shorter perianth segments c. 3<br />
mm long <strong>and</strong> the larger berry, 7–10 mm long. In contrast,<br />
A. africanus has longer perianth segments, 4–5 mm long<br />
<strong>and</strong> a smaller berry, 4–6 mm in diameter.<br />
Climbing shrub to 6 m high. Branches 4x branching, glabrous, terete<br />
or grooved with spines 2–7 mm long, mainly on the main branches;<br />
terminal branches resemble a short stalk, where the flowers are<br />
borne. Cladodes fasciculate, 3–25 together, linear, fine, 3–10 mm<br />
long; final branches <strong>and</strong> cladodes arranged in the same plane.<br />
Flowers solitary or fasciculate, 2–3 together on terminal branches<br />
(rarely some flowers seen also in an axillary position); pedicels 3–8<br />
mm long, articulated at the middle or below. Bracts minute, falling<br />
more or less quickly. Perianth segments white, ± equal, c. 3 mm long.<br />
Stamens shorter than the perianth; anthers yellow. Ovary 3locular,