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Weeping milk cap or Rufous milk cap

How they differ, how to recognize them and which is more dangerous — a mushroom comparison

The short answer

Weeping milk cap and Rufous milk cap are similar species: Weeping milk cap is edible, while Rufous milk cap is conditionally edible. The main visible difference: use: Weeping milk cap — cook fresh, salting, drying, Rufous milk cap — salting, pickling. The mushrooms also differ in the following features: cap shape, taste, smell.

Weeping milk cap (Lactifluus volemus)

Weeping milk cap

Lactifluus volemus

EdibleExpert-verified
Rufous milk cap (Lactarius rufus)

Rufous milk cap

Lactarius rufus

Conditionally edibleExpert-verified

📊 Comparing characteristics

Comparison of characteristics: Weeping milk cap and Rufous milk cap
Edibility class

Weeping milk cap

Edible

Rufous milk cap

Conditionally edible
Season

Weeping milk cap

SummerAutumn

Rufous milk cap

SummerAutumn
Use

Weeping milk cap

Cook freshSaltingDrying

Rufous milk cap

SaltingPickling
Size

Weeping milk cap

Medium (5–15 cm)

Rufous milk cap

Medium (5–15 cm)
Cap color

Weeping milk cap

OrangeRedBrown

Rufous milk cap

RedBrownOrange
Cap shape

Weeping milk cap

Convex

Rufous milk cap

Funnel-shaped
Cap surface

Weeping milk cap

Smooth

Rufous milk cap

Smooth
Taste

Weeping milk cap

Sweet

Rufous milk cap

Acrid
Smell

Weeping milk cap

Pleasant

Rufous milk cap

Odorless
Flesh color change

Weeping milk cap

Darkens

Rufous milk cap

No change
Hymenophore

Weeping milk cap

Gilled

Rufous milk cap

Gilled
Stem

Weeping milk cap

Central

Rufous milk cap

Central
Ring (veil)

Weeping milk cap

No ring

Rufous milk cap

No ring
Volva

Weeping milk cap

No volva

Rufous milk cap

No volva
Substrate

Weeping milk cap

Soil

Rufous milk cap

Soil
Nutrition type

Weeping milk cap

Mycorrhizal

Rufous milk cap

Mycorrhizal
Partner trees

Weeping milk cap

OakHornbeamBeechHazel

Rufous milk cap

Pine

📅 Seasonality

Weeping milk cap

Fruiting season

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

July – September

Rufous milk cap

Fruiting season

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

August – November

🔬 Morphology

Cap

Weeping milk cap

Cap 5-12 (rarely up to 15) cm, convex with an inrolled margin at first, then flattening out with a depressed center. Color orange-brick, rusty brown, apricot — brighter in young specimens, darker in old ones. The surface is dry and smooth, and may crack finely with age. No concentric zones. The cap margin is even.

Rufous milk cap

Cap 3-10 cm, convex at first with a small umbo in the center, then flattened and finally funnel-shaped with a depressed center. Reddish brown, russet, brick-red; darker when young, paler and faded when old. The surface is dry, matte, slightly sticky in wet weather. The cap margin is even, inrolled in young specimens.

Hymenophore

Weeping milk cap

Gilled hymenophore. The gills are crowded, narrow, attached or slightly decurrent down the stem. Color pale cream to yellowish; when damaged they darken to brown (a typical reaction for Lactifluus). They exude abundant white milk. Spore print white.

Rufous milk cap

Gilled hymenophore. Gills crowded, narrow, adnate or slightly decurrent. Whitish to cream, taking on a russet tint with age, like the cap. When damaged, they release white milk. Spore print cream.

Stem

Weeping milk cap

Stem 5-10 cm tall, 1.5-2.5 cm thick, cylindrical or slightly tapering downward, firm, sometimes with small cavities in mature specimens. Same color as the cap or a little lighter — orange-cream. The surface is smooth, no ring and no volva.

Rufous milk cap

Stem 4-8 cm tall, 0.7-1.5 cm thick, cylindrical or slightly tapering toward the base, often hollow in mature specimens. Same color as the cap or slightly paler. The surface is dry, smooth, with no ring and no volva, often with whitish down at the base.

Flesh

Weeping milk cap

Flesh whitish to yellowish, meaty, firm; when cut it slowly darkens to brown within 5-15 minutes — this is a characteristic identification reaction. When damaged it exudes very abundant white milk (hence «molochai», from the word for milk — there's so much that it runs down your hand), which also darkens in air and leaves brown stains on clothing that are hard to wash out.

Rufous milk cap

Flesh whitish or pinkish, firm in the cap, fibrous in the stem. When damaged, it releases abundant white milk that does not change color or turn yellow in the air. This is an important diagnostic feature — white, stable milk.

Smell

Weeping milk cap

A characteristic smell — faint and mushroomy in fresh specimens, but as they dry and in mature ones a distinct smell of fish or herring appears. This is normal, not a sign of spoilage. The flesh and milk taste mild, faintly sweetish, nutty, with no heat and no bitterness.

Rufous milk cap

Smell faint, slightly resinous, with no distinctive notes. The raw flesh and milk taste very hot, sharp, peppery. This is the best diagnostic: lick it and you’ll feel a sharp burning sensation on your tongue.

📍 Habitats

Weeping milk cap

Deciduous forestMixed forest

Rufous milk cap

Conifer forestMixed forest

👀 Similar mushrooms — don't mix them up!

❓ Frequently asked questions

Can Weeping milk cap and Rufous milk cap be mixed up?
Yes, they look so similar that people often mix them up. The use, cap shape, taste help tell them apart.
How to tell Weeping milk cap from Rufous milk cap?
The main differences: use: Weeping milk cap — cook fresh, salting, drying, Rufous milk cap — salting, pickling; cap shape: Weeping milk cap — convex, Rufous milk cap — funnel-shaped; taste: Weeping milk cap — sweet, Rufous milk cap — acrid. As for edibility: Weeping milk cap is edible, Rufous milk cap is conditionally edible. The full table of characteristics is higher up on this page.
Is Rufous milk cap edible?
Rufous milk cap — conditionally edible.
When do Weeping milk cap and Rufous milk cap grow?
Weeping milk cap — July–September; Rufous milk cap — August–November.

Sources

  • [1]Вікіпедія (українська)
  • [2]Атлас грибів України, Зеров Д.К. (1979)
  • [3]MycoBank Database
  • [4]Index Fungorum
  • [5]GBIF
  • [6]iNaturalist Ukraine