北美聖草

Overview

North American holy herb (scientific name: Eriodictyon californicum), also known as Yerba santa (Spanish, meaning "holy grass" or "sacred herb"), consumptive's weed, bear weed, mountain balsam/ Mountain balm.

The three most common and used species are E. California grass, E. trichocalyx, and E. angustifolium, representing northern, southwestern, and eastern California respectively.

The genus belongs to the family Hydrophyllaceae, or Waterleaf family: a family known for its beautiful flowers (examples gratia, pale blue-eyed flower, and five-spotted flower).

North American sage is a herbaceous plant. The leaves are used in medicine.

Holy grass is a shrub native to North America. Its leaves are used in traditional Native American medicine.

North American sage contains chemicals that may loosen mucus in the chest. It also contains chemicals that may aid weight loss.

North American holy grass is used to treat respiratory ailments including coughs, colds, tuberculosis, asthma, and chronic bronchitis. It is also used for fever and dry mouth. Some people use it to relieve muscle spasms, reduce phlegm and as a tonic.

North American holy grass is sometimes made into a warm dressing (saint) and applied directly to the skin to treat bruises, sprains, wounds, insect bites, and to relieve joint pain (rheumatism).

In food and beverages, sage extract is used as a flavoring agent.

In pharmaceutical manufacturing, sage is used to mask the bitter taste of certain medicines.

How to identify

Woody lower branches with shredded bark erect. Sticky, yellow-green new growth produces spear-shaped, 2 to 6 inch long, often hairless leaves. These toothed or smooth-edged leaves are dark green, sticky, shiny on top, and have hairs between the veins forming a web-like pattern on the light-colored underside. The stems are lined with 1/3 to 2/3 inch long tubular flowers, ranging in color from white to pink to purple, that spread out like a scorpion's tail from late spring to early summer. The small seeds can lie dormant for decades, waiting for fire or mechanical disturbance to stimulate germination, maturing in small capsules in late summer.

When, where and how to carry out field work

This shallow-rooted, evergreen shrub 2 to 8 feet tall grows in dry, sunny fields and south-facing rocky slopes and in open woodlands along roadsides at low to mid-elevations. Its spreading roots help stabilize soil at burn sites or disturbed areas. Santa grass begins at the northern border of Josephine and Jackson counties in Oregon and extends south into California.

Harvest from early to late summer for vibrant new leaves. Cut off the branch ends above the outward-facing buds to encourage bushier growth. Lay the stems with leaves flat to dry. Turn them over regularly so the leaves don't stick together and turn brown. Remove the leaves from the stems and use them in tinctures, teas, or smoking; leave them on the stems to use as smudge sticks.

Medicinal uses

Holy grass leaves warm and stimulate the respiratory system; reduce inflammation of the sinuses, throat, and lungs; dry excess secretions in the lungs or upper respiratory tract. Taking a tincture of the leaves can provide relief from chronic asthma, bronchitis, or seasonal allergies that come with lots of and easy coughing up mucus, but keep in mind that santa leaves can be very astringent. If you take higher doses (more than about 45 drops), the drying effect may make your tongue feel like it's been wrung out, but if you take smaller doses, you'll find that the North American Holy Grass first gently dries and then re-moisturizes and refresh mucous membranes.

A cooled tea or tincture in room temperature water can speed the healing of urinary tract infections characterized by mucus discharge. Hot tea or hot water tincture can promote sweating and increase blood circulation to the extremities and skin surface.

North American holy grass leaves, also known as tuberculosis, have a history of treating tuberculous coughs and wasting. Its high flavonoid content (represented by its sweet taste) demonstrates its ability to nourish, build and maintain tissue integrity.

North American sage has a very interesting flavor profile - it starts out bitter and slowly becomes sweeter. It teaches us how to find sweetness in life's painful experiences by recognizing the initiating power of trauma.

Leaves are burned as a smudge to cleanse a space and remove heavy or dark energy from people. Crush the leaves and add them to herbal smoking mixtures to help clear mucus from your lungs.

How does it work?

Holy grass contains chemicals that are thought to loosen mucus in the chest and may increase urination.

Purpose and effectiveness

There is insufficient evidence to assess the effectiveness of...

  • cough .
  • cold .
  • fever .
  • Tuberculosis .
  • asthma .
  • Chronic bronchitis .
  • Mucus relaxes .
  • Spasms .
  • Used as a tonic .
  • Bruises, sprains, cuts, insect bites, or joint pain on skin contact .
  • Other conditions .

side effect

Oral: North American sage is commonly consumed in food. But there isn't enough reliable information to know whether North American holy grass is safe or what side effects it might have when used in large quantities as medicine.

When applied to skin: There is not enough reliable information to know whether holy grass is safe or what side effects it may have.

Special precautions and warnings

Pregnancy and Breastfeeding : There is not enough reliable information about the safety of taking santo during pregnancy or breastfeeding. Stay safe and avoid using.

interactive

Lithium Interaction Rating: Moderate Use this combination with caution. Please consult your healthcare provider.

North American holy grass may have effects similar to water pills or "diuretics". Taking holy grass may reduce the body's ability to eliminate lithium. This may increase the amount of lithium in your body and cause serious side effects. If you are taking lithium, consult your healthcare provider before using this product. Your lithium dose may need to be changed.

dose

The appropriate dose of North American holy grass depends on several factors, such as the user's age, health, and several other conditions. There is currently insufficient scientific information to determine the appropriate dosage range for St. eucalyptus. Keep in mind that natural products are not always safe, and dosage matters. Always follow the directions on the product label and consult your pharmacist or doctor or other health care professional before use.

Review

All comments are moderated before being published

HealthyPIG Magazine

View all
死亡氣味 :科學如何理解生命最後的氣息

死亡氣味 :科學如何理解生命最後的氣息

人類死亡後,身體嘅代謝同細胞運作會急劇改變,隨住時間推進,組織開始分解,產生一系列特有嘅氣味化合物。呢種 死亡氣味 (Odor of Death) 唔單止係動物可以嗅到,亦成為法醫學 (Forensic Science) 研究嘅重要領域。甚至有人提出,狗可能能夠嗅到人「臨終前」嘅早期氣味改變。

狗隻能否嗅出疾病甚至死亡?——從嗅覺科學到臨床研究

狗隻能否嗅出疾病甚至死亡?——從嗅覺科學到臨床研究

人類同狗相處幾千年,唔少人都曾經觀察到:狗似乎「知道」主人唔舒服,甚至有人報告狗會喺主人臨終前出現異常行為。呢啲現象令科學家開始研究:狗隻係咪真係可以嗅出疾病,甚至察覺死亡徵兆?

答案係:狗確實能透過超強嗅覺 (Olfaction) 偵測身體嘅代謝變化,從癌症、糖尿病,到感染性疾病。但關於「臨終氣味」嘅研究仍然有限,更多係臨床觀察。

幻覺:大腦點樣自己製造「假影像」

幻覺:大腦點樣自己製造「假影像」

幻覺 (Hallucinations) 並唔係靈異現象,而係一種 大腦自我製造影像或感覺 嘅過程。當冇外界刺激存在,但大腦卻產生「真實感受」時,就叫幻覺。研究指出,幻覺源於 大腦訊號錯亂神經傳導物質失衡,甚至同 睡眠失調 有密切關係。

心理學上的「預知錯覺」:點解我哋以為自己可以預測未來?

心理學上的「預知錯覺」:點解我哋以為自己可以預測未來?

好多時候,我哋都會有種感覺:「咦!我早就預測到會發生!」,甚至覺得自己擁有「第六感」。但從心理學角度睇,呢種「預知」其實並唔係超能力,而係 大腦嘅認知偏差 (Cognitive Biases)記憶錯亂 (Memory Errors) 造成。以下三個心理現象,最常被誤以為係「預知未來」

大腦嘅「預測功能」:點解我哋係一部預測機器

大腦嘅「預測功能」:點解我哋係一部預測機器

科學研究一直證實,所謂「超自然預知 (Precognition)」並冇可靠證據。但人類大腦本身卻具備一種極強嘅 預測功能 (Predictive Function)。從神經科學角度嚟睇,大腦其實係一部 Prediction Machine(預測機器),不停利用以往經驗去推測未來,再根據新收到嘅感官訊號作出修正。呢種能力解釋咗點解人類可以快速反應、避開危險,甚至提升學習同決策效率。

遲起身唔等於懶!夜貓同雲雀原來係基因決定

遲起身唔等於懶!夜貓同雲雀原來係基因決定

有啲人天生 早睡早起,朝早 6 點自然醒身,精神奕奕;但亦有人喺夜晚最有活力,凌晨兩三點先想瞓。呢種差異唔係單純習慣問題,而係與 Chronotype(睡眠型態) 有關。Chronotype 由基因 (Genetics)、年齡 (Age)、生活環境 (Environment) 一齊決定,直接影響你嘅睡眠時間、精神狀態同工作效率。

腦淋巴系統:大腦喺瞓覺時點樣「清垃圾」

腦淋巴系統:大腦喺瞓覺時點樣「清垃圾」

我哋成日聽人講「瞓覺可以休息大腦」,但其實睡眠唔單止係休息,仲係大腦清理廢物嘅關鍵時刻。近年神經科學發現咗一個重要嘅系統:Glymphatic System(腦淋巴系統),負責喺瞓覺時清除代謝廢物,包括同 阿茲海默症 (Alzheimer’s disease) 有關嘅 β-amyloid(β-類澱粉蛋白)。

睡眠不足與情緒健康:焦慮與抑鬱的隱藏推手

睡眠不足與情緒健康:焦慮與抑鬱的隱藏推手

好多香港人、台灣人甚至全球都市人,都認為「捱夜」只係令身體攰啲,但其實 睡眠不足對情緒健康影響極深。研究顯示,缺乏睡眠唔單止會令人心情差,仲係 焦慮 (Anxiety)抑鬱 (Depression) 嘅高危因素。對於 嗜睡症 (Narcolepsy) 患者,呢種風險更高,因為佢哋天生嘅睡眠結構失調,令情緒波動更加嚴重。

為何過度疲勞會令你進入「恐懼模式 」?

為何過度疲勞會令你進入「恐懼模式 」?

好多時候,大家經歷過捱夜、返工返學壓力大,會覺得整個人進入咗一種「生存模式 (Survival Mode)」:神經繃緊、疑神疑鬼、甚至有啲恐懼感。呢種情況唔只係心理作用,其實背後有大腦與荷爾蒙嘅科學解釋。