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This species is accepted, and its native range is S. Somalia to S. DR Congo.
A specimen from Kew's Herbarium

[FTEA]

Dracenaceae, Geoffrey Mwachala & Paul Mbugua, Flora of Tropical East Africa. 2007

Morphology General Habit
Acaulescent herb; rhizome branching underground, bright orange-red
Morphology Leaves
Leaves 2–7(–8) per plant, mainly erect but older ones ascending to slightly recurving, the outer crescentic with acute edges to the concave channel, the inner cylindric, 50–120(–150) × 1.3–1.9 cm, channeled all down the face, the central leaf with almost indistinct channel, stiff, slightly rough to very rough with a surface like ground glass, gradually tapering to a sharp whitish-brown spine 0.6 cm long, flattish and hardly piercing, the channel much narrower than, or at the basal part sometimes nearly as broad as, the leaf; margins greenish whitish at the basal part, passing into obtusely rounded green edges at the upper part, sharp, with numerous slight grooves or impressed longitudinal lines on the sides and back, dull deep green to bluish green with age, transverse banding decreasing with maturity
Morphology Reproductive morphology Inflorescences
Inflorescence a spike-like raceme with clusters in upper part, light greyish green, 25–50(–75) cm high; flowers 3–6 per cluster, very crowded, ascending-spreading; lower inflorescence bracts 2–3, 5–7.5 cm long; bracteoles 0.2–0.3 cm long, membranous, acute; pedicels 0.2 cm long or less, jointed at the apex
Morphology Reproductive morphology Flowers
Flower tube pale greenish, 1.7–3.2 cm long, 0.3 cm wide, slightly inflated at the base, lobes white or greenish white and minutely dusted with purplish on the back at the apex, linear, 1.3–2 cm long, obtuse, revolute
Morphology Reproductive morphology Fruits
Fruit a globose berry, 0.6–1.4 cm in diameter.
Distribution
Congo-Kinshasa, Somalia
Ecology
Dry bushland ({i}Acacia{/i}-{i}Commiphora{/i}, {i}Acacia{/i}-{i}Euphorbia{/i}), often in rocky sites and may be very common locally; 50–1750 m
Conservation
Least Concern
Note
This species closely resembles {i}S. pearsonii {/i}(Southern Africa), {i}S. desertii {/i}and a few others within the East African region. It is identified in having a very rough leaf surface – almost like ground glass, and an acute horny spine.

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Plant without aerial stem
Morphology Leaves
Leaves 5–8(–12), spirally arranged, ± erect, rigid, 50–120 x c. 1.5 cm, smooth to rough, subcylindric, with 30–40 fine but distinct furrows extending from base to apex on the sides and back and with a concave furrowed channel all along above, ± curved and obtusely cuspidate at the tip, without markings; margins of channel white or with a red-brown line edged with white
Morphology Reproductive morphology Inflorescences
Inflorescence a spike-like raceme, up to 60 cm high including peduncle; flowers 3–6 in a cluster, white or greenish-white; pedicels c. 2 mm long, articulated near the tip
Morphology Reproductive morphology Flowers Tepal
Free parts of tepals 12–20 mm long, linear, obtuse; tube 14–32 mm long.
Distribution
S3; Kenya, Tanzania
Ecology
Altitude c. 30 m.
Note
This is in Somalia only known from the sterile type collection of S. polyrhitis . Fertile material should be looked for in the lower Juba valley to prove the identity of the Somali plant.

[FTEA]
Use
Roots used medicinally; leaves squeezed for water by baboons

Native to:

Kenya, Somalia, Tanzania, Zaïre

Dracaena volkensii (Gürke) Byng & Christenh. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Nov 4, 1994 Wingfield, R. [1525], Tanzania Sansevieria volkensii K000400735 neotype
Jun 12, 1987 Greenway [6597], Tanzania Sansevieria volkensii K000203452
Jun 12, 1987 Greenway [6597], Tanzania Sansevieria volkensii K000203451
Apr 2, 1986 Drummond, R.B. [4420], Kenya Sansevieria volkensii K000203449
Nov 15, 1983 Bally [12305], Kenya Sansevieria volkensii K000203450
Nov 15, 1983 Greenway, P.J. [2091], Tanzania Sansevieria volkensii K000203454
Nov 15, 1983 Greenway, P.J. [2091], Tanzania Sansevieria volkensii K000203453
Feb 10, 1977 Boy Theophilo [Coryndon Mus. No.8646], Kenya Sansevieria volkensii K000203448
Bally, P.R.O. [B13151], Kenya Sansevieria volkensii K000203456
Clarke, G.P. [78], Tanzania Sansevieria volkensii K000203457
Bally [B12114], Kenya Sansevieria volkensii K000203455
Drummond, R.B. [4420], Kenya Sansevieria intermedia 19028.000
Powell [4], Kenya Sansevieria intermedia K000255787 Unknown type material
Powell [9], Kenya Sansevieria intermedia K000255788 Unknown type material
Powell [9], Kenya Sansevieria intermedia K000255789 Unknown type material
Powell [4], Kenya Sansevieria intermedia K000255790 Unknown type material

First published in Global Fl. 4: 67 (2018)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Kew Backbone Distributions

  • Mwachala, G. & Mbugua, P.K. (2007). Dracaenaceae Flora of Tropical East Africa: 1-43.
  • Thulin, M. (ed.) (1995). Flora of Somalia 4: 1-298. The Royal Botanic Gardens, Kew.

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0