Erodium Moschatum
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''Erodium moschatum'' is a species of flowering plant in the geranium family known by the common names musk stork's-bill and whitestem filaree. This is a weedy annual or biennial herb which is native to much of Eurasia and North Africa but can be found on most continents where it is an
introduced species An introduced species, alien species, exotic species, adventive species, immigrant species, foreign species, non-indigenous species, or non-native species is a species living outside its native distributional range, but which has arrived there ...
.


Description

Musk stork's-bill is an annual
monoecious Monoecy (; adj. monoecious ) is a sexual system in seed plants where separate male and female cones or flowers are present on the same plant. It is a monomorphic sexual system alongside gynomonoecy, andromonoecy and trimonoecy. Monoecy is conne ...
herb which grows as a sprawling, procumbent to erect plant up to about 60 cm long or tall, with a musky smell when bruised. It is almost entirely covered with either simple or sticky glandular hairs except for the fruits and petals. The stems are green to purple in colour and bear alternate or opposite pinnate leaves up to about 10 cm long (up to 30 cm in very large plants). The leaf segments are serrated and lobed, but not deeply so: no more than about a quarter of the way to the midrib. The petioles are somewhat shorter than the blade, and have papery stipules up to 10 mm long at their base. The inflorescences are umbels of 6-12 flowers on peduncles up to 10 cm long. At the top of the peduncle are small papery bracts about 3 mm long. The individual flowers are actinomorphic and hermaphroditic, borne on short pedicels which elongate in fruit. There are 5 glandular-hairy sepals a few millimetres long and 5 pale purple petals about 7 mm long. There are also five stamens and five staminodes (sterile stamens) and just one style, with 5 stigma arms. The fruit is a schizocarp which breaks into 5 mericarps, each of which has a short (5 mm) basal segment containing one black seed, and a long (40 mm) beak that splits open at maturity to reveal a feathery appendage that enables the seeds to be dispersed by the wind. At the top of the basal segment there are two conspicuous pits with (unlike other stork's-bills) papillose glands inside.


Identification

Musk stork's-bill is distinguished from other British stork's-bills by its smell, its once-pinnate leaves and the glands in the apical pits on the fruit.


Uses

Like ''
Erodium cicutarium ''Erodium cicutarium'', also known as common stork's-bill, redstem filaree, redstem stork's bill or pinweed, is a herbaceous annual plant, annual – or in warm climates, biennial plant, biennial – member of the family Geraniaceae of flowering ...
'', the species is edible.


Ecology

Several species of insects have been recorded on musk mallow, including the midge ''Dasineura erodiicola'', which causes galls on the flowers. Two moths are recorded feeding on the leaves: the Setaceous Hebrew character and ''
Thaumetopoea herculeana ''Thaumetopoea'' is a genus of moths belonging to the family Notodontidae. It was first described by Jacob Hübner in 1820. In their caterpillar form, they bear the vernacular name of processionary because their gregarious larvae conspicuously ...
'', as is the weevil ''Donus dauci'' and the
green peach aphid ''Myzus persicae'', known as the green peach aphid, greenfly, or the peach-potato aphid, is a small green aphid belonging to the order Hemiptera. It is the most significant aphid pest of peach trees, causing decreased growth, shrivelling of the ...
. Two types of mildew infest the leaves: ''Podosphaera erodii'' and ''Peronospora erodii'', and pustules on the leaves can be caused by the rust ''Synchytrium papillatum''. Other pests include the leaf miner ''Agromyza nigrescens'', the aphid ''Acyrthosiphon malvae'', the leaf beetle ''Aphthona pallida'', which feeds on the roots, and the weevil ''Zacladus exiguus'', which bores into the root collar.


References


External links


Jepson Manual TreatmentPhoto gallery
moschatum Edible plants Flora of Lebanon and Syria {{Geraniaceae-stub